Police investigate the scene where Douglas Shapiro, 45, of Lindenhurst,...

Police investigate the scene where Douglas Shapiro, 45, of Lindenhurst, was killed after he was thrown from his 2013 BMW motorcycle while riding north on Wellwood when he was sideswiped by a 2007 Chrysler, driven by Maria Martinez, 38, of West Babylon on Wellwood Avenue near Fifth Street, police said. Credit: James Carbone

Suffolk County police are investigating a two-vehicle accident Monday morning that killed a motorcyclist in North Lindenhurst.

Douglas Shapiro, 45, of Lindenhurst, was pronounced dead at Good Samaritan Hospital Medical Center in West Islip after being thrown from his 2013 BMW motorcycle about 8 a.m. on Wellwood Avenue near Fifth Street, police said.

Shapiro was riding north on Wellwood when he was sideswiped by a 2007 Chrysler, driven by Maria Martinez, 38, of West Babylon, police said.

Martinez was neither issued a ticket nor arrested, police said.

Anyone with information can call the First Squad at 631-854-8152 or Crime Stoppers at 800-220-8477. All calls will be kept confidential.

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