+-
John Bittrolff inside Riverhead Criminal Court Thursday morning (Credit: James Carbone)

John Bittrolff inside Riverhead Criminal Court Thursday morning on July 31, 2014, where he was arraigned on an indictment charge in the killing of two women. Prosecutors from the office of District Attorney Thomas Spota described the investigation in court papers last week to get a court-ordered DNA sample from Bittrolff, charged with strangling and bludgeoning Rita Tangredi, 31, of East Patchogue in November 1993, and Colleen McNamee, 20, of Holbrook in January 1994.

Video recap: The John Bittrolff trial

John Bittrolff, 48, is charged with two counts of second-degree murder in the deaths of Rita Tangredi, 31, of East Patchogue, on Nov. 2, 1993, and Colleen McNamee, 20, of Holbrook, on Jan. 30, 1994.

Manorville man arrested in 1990s slayings

John Bittrolff faces murder charges in the slayings

John Bittrolff faces murder charges in the slayings of Rita Tangredi and Colleen McNamee, whose bodies were found in Suffolk in 1993 and 1994, respectively. On July 22, 2014, Suffolk officials announced at a news conference that the suspect was connected to the murders based on DNA evidence. (Credit: Ed Betz) (July 22, 2014 4:42 PM)

John Bittrolff faces murder charges in the slayings of Rita Tangredi and Colleen McNamee, whose bodies were found in Suffolk in 1993 and 1994, respectively. On July 22, 2014, Suffolk officials announced at a news conference that the suspect was connected to the murders based on DNA evidence. (Credit: Ed Betz)

Rita Tangredi’s sister speaks about arrest of suspected killer

Diana Santacroce spoke on July 28, 2014 about

Diana Santacroce spoke on July 28, 2014 about the recent arrest of suspect John Bittrolff, who has been charged with the 1993 murder of her sister, Rita Tangredi. (Credit: Newsday / Thomas A. Ferrara; Photo Credit: SCPD and Newsday / Alejandra Villa) (July 31, 2014 12:57 PM)

Diana Santacroce spoke on July 28, 2014 about the recent arrest of suspect John Bittrolff, who has been charged with the 1993 murder of her sister, Rita Tangredi.  (Credit: Newsday / Thomas A. Ferrara; Photo Credit: SCPD and Newsday / Alejandra Villa)

John Bittrolff arraigned on charges of killing two women 20 years ago

John Bittrolff pleaded not guilty to murder charges

John Bittrolff pleaded not guilty to murder charges in the slayings of Rita Tangredi and Colleen McNamee, whose bodies were found in Suffolk in 1993 and 1994, respectively. On July 22, 2014, Suffolk officials announced at a news conference that the suspect was connected to the murders based on DNA evidence. (Credit: Newsday/ Chuck Fadely, pool) (July 31, 2014 5:18 PM)

John Bittrolff pleaded not guilty to murder charges in the slayings of Rita Tangredi and Colleen McNamee, whose bodies were found in Suffolk in 1993 and 1994, respectively. On July 22, 2014, Suffolk officials announced at a news conference that the suspect was connected to the murders based on DNA evidence. (Credit: Newsday/ Chuck Fadely, WCBS pool)