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SHEEPSHEAD BAY, Brooklyn — One man is dead and two others injured in a Tuesday afternoon hammer attack in Brooklyn, police said.

Authorities said 34-year-old Arthur Martunovich walked into the Seaport Buffet on Emmons Avenue near East 21st Street just after 5 p.m. and started striking employees with a hammer.

Three victims, a 60 year-old male, a 50 year-old male, and a 34 year-old male were transported to the hospital.

The 34 year-old victim, later identified as Fufai Pun, the buffet’s chef, was pronounced deceased at the hospital while the 60 year-old restaurant owner and 50 year-old manager remain in critical condition.

Martunovich was charged with one count of murder and two counts of attempted murder.

“Terrible, terrible. Really. They’re hard working people. Its a clean place,” said Paul Randazzo who owns the restaurant across the street.

Randazzo says he saw the suspect looking in his restaurant windows on surveillance camera, minutes before he walked into the seafood buffet.

The attack was unprovoked and Martunovich was an emotionally disturbed person, police said.