June 16, 2021 -- An off-duty Mount Vernon police officer who was driving at more than twice the speed limit on the Hutchinson River Parkway when he caused a collision that resulted in the death of a motorcyclist was arraigned today on charges relating to the incident, Westchester District Attorney Miriam E. Rocah announced.

John Osario, 52, of White Plains died at the scene near Lincoln Avenue in Mount Vernon on September 25, 2020.

Antoine Henrys, a 38-year-old Mount Vernon resident and eight-year member of the Mount Vernon Police Department, is charged with Manslaughter in the Second Degree, Criminally Negligent Homicide and Reckless Driving.

“Antoine Henrys’ dangerous driving showed a total disregard for the safety of other drivers and ultimately led to the death of John Osario,” said DA Rocah. “Westchester drivers need to know that we will aggressively pursue this kind of behavior as we work to keep our roadways safe for all.”

According to the investigation conducted by the Westchester County Police, Henrys was traveling northbound on the parkway at 129 miles per hour in a 50-miles-per-hour zone seconds before hitting the rear of a second vehicle. The impact caused the second vehicle to lose control and move into the motorcyclist’s lane, striking the motorcycle and causing Osario to be thrown into the southbound lanes of the parkway where he was struck by multiple vehicles.

The case is before Judge David Zuckerman, AJSC, in Westchester County Court, and is being prosecuted by Assistant District Attorney and Deputy Chief of the Vehicular Crimes Bureau Dan Flecha.

The charges against the defendant represent accusations and he is presumed innocent unless and until proven guilty.


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