NEW YORK — Police investigators are seeking suspects in a homicide weeks after a 45-year-old man was beaten by about 30 people on ATVs and dirt bikes on East 125th Street in East Harlem, police said Wednesday.“We will continue to target and crush these unauthorized and dangerous vehicles that do nothing more than terrorize our neighborhoods.”Cooke, the victim of the most recent violence, lived in Harlem and had worked as a case manager and court advocate in the Alternatives to Incarceration program at Exodus Transitional Communities Inc. since July 2021.“Nothing about his behavior ever exhibited, you know, like aggressive, overly aggressive or whatever that you would think would spark or start that type of altercation.”As street vendors set up their businesses along a bustling 125th Street in East Harlem and shoppers hunted for deals, a couple of electric bikes zipped through the streets.Tony Wilson, 61, said that he saw dirt bikes and ATVs riding back-and-forth on 125th Street often, “like they don’t have nowhere to go.”“It’s just showing off, popping wheelies and that’s it,” Wilson said.Fatouma Koné, 25, who has lived in Harlem her whole life, echoed Wilson, saying riders are mainly trying to make a splash on social media and build their reputations."