Gerard Benderoth, 48 — nicknamed “White Rhino” from his days as a strongman competitor — killed himself on a quiet suburban road in Rockland County around 8:20 a.m. as feds pulled him over.
The feds planned to arrest him on a sealed indictment tied to a murder and drug conspiracy case, sources said.
US Attorney Preet Bharara had already busted Benderoth’s retired Westchester cop pal Nicholas Tartaglione in December — and slapped him with four murder charges along with drug conspiracy.
“If this guy put a bullet in his head rather than go and talk to them, he must have been in deep,” a law enforcement source noted to The Post.
Officers had tried earlier Wednesday to grab Benderoth at his ranch home in Stony Point in Rockland County, where he lived with his wife, Amy, and their four children.
Not finding him there, agents caught up with him one town south and some 15 minutes away, on windy Rosman Road.
Seeing flashing lights behind him, Benderoth called his former colleagues at the Haverstraw Police Department.
“Why are you pulling me over?” he asked, according to sources.
But Haverstraw cops told him it wasn’t them.
He stopped his SUV within eyeshot of a church and up the street from an elementary school — and fatally shot himself before the agents could make it to his vehicle, sources said.
Benderoth, who worked a stint at the Haverstraw PD after retiring from the NYPD in 2005, was facing undisclosed charges in connection to the quadruple murder allegedly carried out by Tartaglione — a fellow bodybuilder and retired officer with the Briarcliff Manor PD.
Bharara’s indictment of Tartaglione, 49, accuses him and unnamed conspirators of selling kilo-weight cocaine for almost a year.
In April, one drug deal turned into a bloodbath, with Tartaglione allegedly killing Martin Luna, Urbano Santiago, Miguel Luna and Hector Gutierrez.
See More- Source: NY Post