BRENTWOOD, Long Island (WABC) --Suffolk County police say a second set of human remains has been found in a wooded area of Brentwood.
Investigators revealed that the remains recovered Friday are that of 19-year-old Oscar Acosta who disappeared in May, and a second set of remains were found nearby Wednesday.
Acosta's mother assured Eyewitness News when he disappeared that he was not linked to any gangs, but that he was afraid of the gang members in his neighborhood.
Investigators worked late Wednesday night forced to light a field where human remains were found.
Hours earlier, officers used shovels to dig at the crime scene behind a commercial building on Emjay Boulevard in Brentwood.
Nearly five months ago, mother Maria Arias handed out fliers looking for help to find her son Acosta.
Wednesday night at their Brentwood home, his mother told Eyewitness News that she's not ready to speak publicly.
Acosta attended Brentwood High School like Kayla Cuevas and Nisa Mickens.
Both were found beaten to death last week, and all three are presumed to be the victims of gang violence.
Suffolk County Police say they are putting the pressure on members of a street gang.
"We're going to do everything in our power to get to the bottom of the murders of Nisa and Kayla. We're going to do everything in our power to get to the bottom of the missing person investigation of Mr. Acosta. And we're going to do everything in our power to decimate gangs in the Brentwood community," said Suffolk County Police Commissioner Timothy Sini.
Police have a violent known gang member in federal custody on an unrelated charge.
It's proof that police are putting the squeeze on gang members, which hopefully lead to the killers.