John Bittrolff

John Bittrolff (born July 1, 1966) is an American convicted murderer and former suspect in the Gilgo Beach serial killings case. In July 2014, he was charged with the murders of Rita Tangredi and Colleen McNamee. He was also a suspect in the murder of a third woman, Sandra Costilla, prior to the capture of serial killer Rex Heuermann. Bittrolff became a suspect in the unsolved murders after his brother, Timothy Bittrolff, was partially matched to DNA found on the bodies in 2013. Timothy Bittrolff submitted the sample after violating an unrelated order of protection, in 2013. On July 5, 2017, Bittrolff was found guilty of the second degree murders of Tangredi and McNamee. He was sentenced to 50 years to life in prison on September 12, 2017. He is imprisoned at Clinton Correctional Facility. His department identification number is 17A3925.