In the predawn hours of February 11, 2011, Aleksandr Kuznetsov, 54, was found stabbed to death inside his first-floor East 27th Street apartment in Sheepshead Bay, Brooklyn. Police reported he had been knifed numerous times and was pronounced dead at the scene. Officers recovered a knife inside the apartment.

Investigators rapidly focused on his stepson, Maksim Gelman, after police said an argument over the use of a gray Lexus—between Gelman and his mother—escalated when Kuznetsov intervened.

The manhunt ended the following morning when riders recognized Gelman on a Manhattan subway train; he was subdued after a passenger was slashed and taken into custody at the Times Square station near 40th Street and 7th Avenue. Prosecutors later charged him in connection with Kuznetsov’s killing and related attacks.

Did anyone in Sheepshead Bay know Aleksandr Kuznetsov or see the gray Lexus that morning?