Investigators suspected convicted serial killer John Bittrolff in Costilla’s death, but he was never charged in her slaying — which remains one of several unsolved Long Island murders.
Investigators suspected that convicted serial killer John Bittrolff was linked to Costilla’s murder, but he was never charged. He is currently serving a 50-years-to-life sentence at Clinton ...
Read full article: ‘Potential serial killer’ arrested after bodies of 2 women found in Orange County, sheriff says FILE - Defendant John Bittrolff appears for a hearing at Riverhead Criminal ...