Metro

Bad ecstasy eyed in Randall’s Island rave overdoses

Cops are investigating whether a “bad batch” of ecstasy pills was behind the string of overdoses at the rave-style “Electric Zoo” festival that apparently killed two people and sent four others to the hospital, The Post has learned.

A law-enforcement source said the fact that nothing connects dead concert-goers Olivia Rotondo, 20, and Jeffrey Russ, 23, to each other may mean that they bought their drugs at the Randall’s Island event.

The NYPD hopes the others who survived their overdoses on Saturday can remember whether the pills they popped were imprinted with a brand or logo that could help identify the dealer, the source said.

The DEA is “providing all resources and intelligence we can to assist in the investigation,” Special Agent Erin Mulvey said.

Most of the ecstasy sold in New York is smuggled in powder form from labs in China, India and Canada, then pressed into pills by major distributors, Mulvey noted.

Autopsies performed on Rotondo and Russ were “inconclusive” and the Medical Examiner’s Office is awaiting toxicology and tissue tests to determine their cause of death, spokeswoman Ellen Borakove said.

Sunday’s final day of the Electric Zoo was canceled.