The Trinity Killer

The Trinity Case is the main focus in Season Four of the Showtime series DEXTER.

It involves the investigation into a repetitive pattern of killings, a.k.a. kill cycles. Initially, only Frank Lundy ties the different M.O.s to a single killer, whom he calls the Trinity Killer.

Each kill cycle consists of:

  1. The burial of a ten-year-old boy encased in cement
  2. A young (usually single) woman bled out in her own bathtub
  3. A mother of two forced to fall to her death
  4. A middle-aged father of two beaten to death

This case is the sixth major case in the series. The major case preceding this one is the Frank Lundy Murder Case and the next major case is the Santa Muerte Case.

History of Killer

When Arthur Mitchell was ten years old, he accidentally startled his sister, Vera Mitchell, as she took a shower, causing her to fall, slice her femoral artery, and bleed to death. After this event, Marsha, his mother, fell into a deep depression and his father, Henry, began to drink heavily and exhibit abusive behavior. Arthur's mother eventually committed suicide by jumping off a bridge. After she died, Henry became even more abusive towards his son, blaming him for the deaths of his sister and mother. One night, Henry was beaten to death outside a bar, and Dexter suspected that it was Arthur who had killed him.

Summary

Season Four

Arthur returns to his original murder sites in Miami to complete another kill cycle. He slices the femoral artery of a young woman in her bathtub, after which he takes a scalding hot shower. For his next murder, he forces a mother of two to fall to her death. He then provokes a drunken man into beating him up, after which he bludgeons another man to death. After each kill, Trinity places a smudge of his dead sister's ashes near the victim.

Although he is retired from the FBI, Frank Lundy returns to Miami to hunt down Trinity. In "Blinded by the Light," Lundy tells Dexter that he has counted 15 kill cycles in the last 15 years (1993 - 2008). He acknowledges there must be an additional 15 years of kill cycles dating back to the murder of Vicky Noonan in 1979.

Later, a fourth cycle victim is discovered -- a ten-year-old boy who was buried in cement prior to the other three victims. The police learn that Arthur's kill cycles actually consist of four victims, not three.

Case Detectives

Other operatives involved in the case:

Suspects

  • Eddie Noonan - Thirty years ago, he was the primary suspect in the murder of his wife Vicky. Although he was innocent, he was convicted of the murder and sent to prison. When Lisa Bell was murdered in his old house thirty years later in the same fashion, Debra Morgan interrogated him. Later, Eddie was exonerated for both murders when it was revealed that Arthur Mitchell had killed Eddie's wife.
  • Stan Beaudry - Stan had previously murdered a prostitute, but was released due to a broken chain of custody for the murder weapon. Due to his criminal record and because Dexter had planted evidence against him, Stan was suspected as being The Trinity Killer. Later, he was cleared of suspicion when he was alibied for some of the murders.
  • Arthur Mitchell - He showed up on Homicide's radar when they learned that Trinity had tried to kill a little boy. This led to the discovery of boy burials around the country connected to Arthur's construction sites. He was confirmed as The Trinity Killer when the history of his family deaths was revealed and it matched his kill pattern.

Unsuspected Killer

  • Jonah Mitchell - He is the son of the real Trinity Killer. After his sister committed suicide (due to abuse by their mother), he lost his temper and killed his mother. He then set it up to look like his father murdered both his sister and mother. Later, Jonah told Dexter what really happened ("Nebraska").

Police Investigation Victims

Kill Cycle Schedule

In November 2009, Debra Morgan discerns a pattern when she notices that the murders are being committed in certain months. At this point, she has counted about 75 individual killings that include young women who bled out in bathtubs, mothers who had fallen to their deaths, and men who had been bludgeoned. The count is listed on a whiteboard:

  • 15 murders in December
  • 40 murders in July & August
  • 20 (or so) in the Spring

On Thanksgiving Day, Debra realizes that Trinity's kills match school breaks ("Hungry Man") She continues to find additional victims.

Total Victims: 279

  • At least 276 (during kill cycles)
  • Three (outside kill cycles)

Kills Outside Cycle: 3

  1. Henry Mitchell - Arthur's father. Although it is never confirmed that Arthur killed him it is likely, as Arthur shouts verbal abuse to his later victims of bludgeoning. It is possible that Henry was Arthur's first kill.
  2. Kyle Butler - A victim that Arthur bludgeoned while he was trying to find Dexter. It was done after he had failed at starting a new cycle. This man doesn't fit into Trinity's cycle because Arthur just wanted to kill him to silence him. Soon after, Arthur tracked down another Kyle Butler, but did not this one.
  3. Rita Morgan - A bathtub victim. She is considered outside of his cycle for two reasons: He had yet to succeed in burying a young boy in cement, and, as a mother, she didn't fit the normal characteristics of his bathtub victims.

Kill Cycle Victims: 276

There are 69 kill cycles with four victims each. According to comments, files, presentations, online research, maps, whiteboards, and postcards, Trinity completed kill rituals in the following places:

  • 1976: Baltimore, Maryland (verified in ep. 409, 411)
  • 1977: St. Petersburg, FLorida (verified in ep. 409, 411)
  • 1978: Birmingham, Alabama (verified in ep. 409, 411)
  • 1979: Richmond, Virginia (verified in ep. 411)
  • 1979: Miami, FL (verified in ep. 402)
    • Unknown Boy - Live Burial
    • Vicky Noonan - Bathtub
    • Unknown mother of two - Jumper
    • Unknown father of two - Bludgeoned
  • 1980: Charlotte, N. Carolina (verified in ep. 411)
  • 1980: Detroit, Michigan (verified in ep. 403, 405, 408)
  • 1981: Seattle, Washington (verified in ep. 405, 412)
  • 1982: Portland, Oregon (verified in ep. 404, 409, 411, 412)
  • 1983: Grand Canyon area, Arizona (verified in ep. 412)
  • 1983: Tulsa, Oklahoma (verified in ep. 409, 411, 412)
  • 1984: Dallas, Texas (verified in ep. 409, 411, 412)
  • 1985: Austin, Texas (verified in ep. 409, 411)
  • 1985: (unknown city) New York (verified in ep. 412)
  • 1985: Phoenix, Arizona (verified in ep, 405, 408)
  • 1986: Albuquerque, New Mexico (verified in ep. 404, 411, 412)
  • 1987: Reno, Nevada (verified in ep. 411, 412)
  • 1988: Salt Lake City, Utah (verified in ep. 411, 412)
  • 1989: Pittsburgh, Pennsylvania (verified in ep. 412)
  • 1989: Boise, Idaho (verified in ep. 409, 411)
  • 1990: Duluth, Minnesota (verified in ep. 412)
  • 1990: Helena, Montana (verified in ep. 409, 411)
  • 1991: Santa Fe, New Mexico (verified in ep. 412)
  • 1991: El Paso, Texas (verified in ep. 409)
  • 1991: Sarasota, Florida (verified in ep. 408)
  • 1992: Sacramento, California (verified in ep. 412)
  • 1992: St. Paul, Minnesota (verified in ep. 409, 411)
  • 1992: Bloomington, Illinois (verified in ep. 412)
  • 1993: Raleigh, N. Carolina (verified in ep. 403, 406. 409)
  • 1993: Daytona Beach, Florida (verified in ep. 412 )
    • Unknown Boy -Live Burial
    • J. Lewitt - 3/12/1993 - Bathtub
    • D. Webster - 3/17/1993 - Jumper
    • S. Hunter - 3/22/1993 - Bludgeoned
  • 1994: San Diego, California (verified in ep. 409, 411, 412)
    • Unknown Boy - Live Burial
    • I. Rosengard - 9/5/1994 - Bathtub
    • E. Hemming - 9/10/1994 - Jumper
    • J. Roberson - 9/15/1994 - Bludgeoned
  • 1995: Biloxi, Mississippi (verified in ep. 412 )
    • Unknown Boy - Live Burial
    • A. Darakjan - 2/26/1995 - Bathtub
    • N. Reiss - 3/3/1995 - Jumper
    • D. Freiburn - 3/8/1995 - Bludgeoned
  • 1995: Little Rock, Ark. (verified in ep. 409, 411)
  • 1996: San Francisco (verified in ep. 406. 409, 411, 412)
    • Unknown Boy - Live Burial
    • Unknown young woman - Bathtub
    • Unknown mother of two - Jumper
    • Unknown man - Bludgeoned
  • 1997: Louisville, Kentucky (verified in ep.406. 409, 411. 412)
    • Unknown Boy - Live Burial
    • Loretta Kellerman - 2/12/1997 - Bathtub
    • Unknown mother of two - 1997 - Jumper
    • Unknown father of two - 1997 - Bludgeoning
  • 1997: Unknown city
    • Unknown Boy - Live Burial
    • M. Bogert - 9/16/1997 - Bathtub
    • J. Snisse - 9/21/1997 - Jumper
    • E. Newman - 9/26/1997 - Bludgeoning
  • 1998: Atlanta, GA (verified in ep. 409, 411 412)
    • Unknown Boy - Live Burial
    • L. Candace - 8/23/1998 - Bathtub
    • R. Elliot - 8/28/1998 - Jumper
    • R. Dermott - 9/2/1998 - Bludgeoning
  • 1999: Columbus, Ohio (verified in ep. 411)
    • Unknown Boy - Live Burial
    • J. Spaan - 3/9/1999 - Bathtub
    • R. Golden - 3/14/1999 - Jumper
    • B. Ball - 3/19/1999 - Bludgeoning
  • 1999: Unknown city
    • (Unknown Boy - Live Burial
    • H. Grodman - 10/7/1999 - Bathtub
    • C. Endless - 10/14/1999 - Jumper
    • F. Calvert - 10/19/1999 - Bludgeoning
  • 2000: Detroit, Michigan (verified in ep. 405, 406 409, 411)
    • Unknown Boy - Live Burial
    • Anita Soloman - 3/03/2000 - Bathtub
    • Unknown mother of two - Jumper
    • Unknown father of two - Bludgeoning
  • 2000: Saint Louis, Missouri (verified in ep. 412)
  • 2001: Duluth, Minnesota (verified in ep. 412)
    • Unknown Boy - Live Burial
    • L. Fisher - 5/11/2001 - Bathtub
    • P. Ford - 5/16/2001 - Jumper
    • A. Severse - 5/21/2001 - Bludgeoning
  • 2001: Dothan, Alabama (verified in ep. 409, 411)
  • 2002: Coney Island, New York (verified in ep. 411, 412)
    • Unknown Boy - Live Burial
    • R. Goldman - 10/24/2002 - Bathtub
    • J. Lewis - 10/29/2002 - Jumper
    • C. Moreno - 11/3/2002 - Bludgeoning
  • 2002: Skokie, Illinois (board 409)(411)
  • 2002: Richmond, Virginia (verified in ep. 403, 405, 406, 409)
  • 2003: Oklahoma City, Oklahoma (verified in ep. 409, 411)
    • Unknown Boy - Live Burial
    • K. Watkins - 4/15/2003 -
    • A. Asarcca - 4/20/2003 -
    • J. Jones - 4/25/2003 -
  • 2003: Portland, Oregon (verified in ep. 412)
  • 2004: Tempe, Arizona (verified in ep. 411)
  • 2004 Chicago, Illinois (verified in ep.405, 406)
  • 2005: Wichita, Kansas (verified in ep. 409, 412)
    • Unknown Boy - Live Burial
    • A. Goff - 5/11/2005 - Bathtub
    • L. Pickford - 5/16/2005 - Jumper
    • A. Roman - 5/21/2005 - Bludgeoning
  • 2006: Denver, Colorado (verified in ep. 410, 411)
    • Mark Wolter - 9/10/2006 - Live Burial
    • J. Meltzer - 9/18/2006 - Bathtub
    • J. Antonoff - 9/23/2006 - Jumper
    • J. Ellis - 9/28/2006 - Bludgeoning
  • 2006: Unknown city, Minnesota (verified in ep. 412)
  • 2006: Gary, Indiana (verified in ep. 409, 411)
  • 2007: Denver, Colorado (verified in ep. 409, 411, 412)
    • Unknown Boy - Live Burial
    • R. Cornelius - 7/20/2007 - Bathtub
    • R. Hermosillo - 7/25/2007 - Jumper
    • B. Polaski - 7/30/2007 - Bludgeoning
  • 2007: St. Paul, Minnesota (verified in ep. 410)
    • Thayer Copperud - 8/11/2007 - Live Burial
    • Tamera Klaman - 8/16/2007- Bathtub
    • Unknown mother of two - Jumper
    • Unknown father of two - Bludgeoning
  • 2008: Chicago, Illinois (verified in ep. 412)
    • Unknown Boy - Live Burial
    • L. Spheeris - 7/20/2008 - Bathtub
    • J. Leiberman - 7/25/2008 - Jumper
    • R. Bear - 7/30/2008 - Bludgeoning
  • 2008: Omaha, Nebraska (verified in ep. 410)
    • Brody Avenir - 9/15/2008 - Live Burial
    • Julie Hillard - 9/20/2008 - Bathtub
    • Unknown mother of two - Jumper
    • Unknown father of two - Bludgeoning
  • 2008: Tampa, Florida (verified in ep. 411)
  • 2009: New Orleans, Louisiana (verified in ep. 410)
    • Mathew Hicks - 7/09/2009 - Live Burial
    • Unnamed young woman - Bathtub
    • Unnamed mother of two - Jumper
    • Unnamed father of two - Bludgeoning

Additional Kill Cycles

  1. Unknown year: Fresno, California (verified in ep.404)
  2. Unknown year: Philadelphia, Pennsylvania (verified in ep.405)
  3. Unknown year: Las Vegas, Nevada (verified in ep. 411)
  4. Unknown year: Boston, Massachusetts (verified in ep. 411)
  5. Unknown year: Des Moines, Iowa (verified in ep.411)
  6. Unknown year: Daytona Beach, Florida (verified in ep.412)
  7. Unknown year: Cheyenne, Wyoming (verified in ep. 412)
  8. Unknown year: Topeka, Kansas (verified in ep. 412)

Note: Cities have been confirmed, not most victims' names.

Named Victims

Boys

Bathtub Murders

  • 1979 - Vicky Noonan (age 22)
  • (Missing years)
  • 1993 March 12 - J. Lewitt
  • 1994 September 5 - I. Rosengard
  • 1995 February 26 - A. Darakjan
  • 1997 February 12 - Loretta Kellerman
  • 1997 September 16 - M. Bogert
  • 1998 August 23 - L. Candace
  • 1999 March 9 - J. Spaan
  • 1999 October 7 - H. Grodman
  • 2000 March 3 - Anita Soloman
  • 2001 March 11 - L. Fisher
  • 2002 October 24 - R. Goldman
  • 2003 April 15 - K. Watkins
  • 2005 May 11 - A. Goff
  • 2006 September 18 - J. Meltzer
  • 2007 July 20 - R. Cornelius
  • 2007 August 16 - Tamera Klaman
  • 2008 July 20 - L. Spheeris
  • 2008 September 9 - Julie Hillard
  • 2009 September 21 - Lisa Bell

Jumpers

  • 1993 March 17 - D. Webster
  • 1994 September 10 - E. Hemming
  • 1995 March 3 - N. Reiss
  • 1997 September 21 - J. Snisse
  • 1998 August 28 - R. Elliot
  • 1999 March 14 - R. Golden
  • 1999 October 14 - C. Endless
  • 2001 May 16 - P. Ford
  • 2002 October 29 - J. Lewis
  • 2003 April 20 - A. Asarcca
  • 2005 May 16 - L. Pickford
  • 2006 September 23 - J. Antonoff
  • 2007 July 25 - R. Hermosillo
  • 2008 July 25 - J. Leiberman
  • 2009 September 26 - Tarla Grant (age 36)

Bludgeoned Victims

  • 1993 March 22 - S. Hunter
  • 1994 September 15 - J. Roberson
  • 1995 March 8 - D. Freiburn
  • 1997 September 26 - E. Newman
  • 1998 September 2 - R. Dermott
  • 1999 March 19 - B. Ball
  • 1999 October 19 - F. Calvert
  • 2001 May 21 - A. Severse
  • 2002 November 3 - C. Moreno
  • 2003 April 25 - J. Jones
  • 2005 May 21 - A. Roman
  • 2006 September 28 - J. Ellis
  • 2007 July 30 - B. Polaski
  • 2008 July 30 - R. Bear
  • 2009 October 1 - Earl Doorman

Indirect Deaths

  1. Vera Mitchell - Accidentally died while taking a shower because she was startled by Arthur watching her. She fell, broke the shower door, cut her femoral artery, and bled out.
  2. Frank Lundy - Shot by Christine Hill, who tried to save her father from being caught as Trinity.
  3. Stan Beaudry - Killed by Dexter because he needed someone to frame for the Trinity murders.
  4. Christine Hill - Committed suicide by shooting herself after her father rejected her, and the police realized that she murdered Lundy.
  5. Rebecca Mitchell - Committed suicide in a fashion similar to the bathtub victims.
  6. Sally Mitchell - Angrily bludgeoned by Jonah Mitchell, after his sister committed suicide. Sally had verbally abused and blamed Jonah and Rebecca for the circumstances surrounding Arthur.

Attempted Victims

  1. Scott Smith - 2009
  2. Kyle Butler - 2009

Alleged Victims

Closure of Case

The FBI force Miami Metro Homicide to turn the case over to them, after Trinity is identified as Arthur Mitchell.

Fate of Killers

Trivia

  • When Rita’s body is discovered, Quinn asks Masuka if Trinity ever killed a married woman in a bathtub. Although it was known that Trinity killed Vicky Noonan (wife of Eddie Noonan) in a bathtub, Masuka replies, “First time for everything.”

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