BUSHWICK, Brooklyn (WABC) -- NYPD officers are investigating after an argument inside a deli in Brooklyn ended with one man being killed.

Investigators say the victim, 59-year-old Gerry Hill, is a panhandler in the area who is known to become aggressive.

Police say he entered the Royal Deli and Grill on Knickerbocker Avenue in Bushwick around 7 p.m. Monday and got into an argument with two workers.

One of those workers grabbed a baton and hit Hill in the head.

Hill went home but later lost consciousness and was taken to the hospital where he died.

Isaiah Arocho says he was inside the store when he witnessed the first of two fights between Hill and the employees.

"It was over a credit because he owed the store some money and he was paying back and he kept asking for stuff," Arocho sa

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