The two men allegedly approached a 38-year-old victim around 1:15 p.m. in front of 106-06 160th Street in Jamaica and attempted to take his chain.
Police said a struggle ensued among the three, and the 46-year-old alleged robber ended up accidentally shooting his 24-year-old accomplice in the head.
The 24-year-old, identified as Tyrell Simms of Brooklyn, was pronounced dead at Jamaica Hospital.
The 46-year-old allegedly tried to run away but was taken into custody.
A gun was recovered at the scene, and charges are pending.
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