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NORTH LAUDERDALE (CBSMiami) – Broward Sheriff’s deputies are looking for a man that can be seen in surveillance footage captured inside a convenience store.

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That man is accused of killing 61-year-old Ayub Ali, a father of four.

Inside Aunt Molly’s food store Tuesday afternoon, the suspect is seen following Ali around the counter, moments before putting a black object to his back.

At one point, Ali is seen putting his hands up, appearing not to put up any fight.

Shortly after, the man takes money from the register and leaves.

But according to deputies, the suspect returned shortly after and shot Ali.

He was taken to Broward health medical center and pronounced dead.

“I can’t believe this. It happened during a robbery in his own store,” said friend Joaquin Nieves.

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Nieves says it was just a week ago that he told Ali to be careful when working by himself at the store, saying not to trust anyone.

“I was helping him move some furniture for his wife and i was telling Ali be careful people are watching you know,” he said.

Ali’s loved ones and neighbors are all on high alert.

Two of Ali’s four children, a son and a daughter, survived the shooting at Marjory Stoneman Douglas High School earlier this year.

Ali’s closest friends hope the community can help find a killer.

“Please, anyone knows anything tell them speak up,” said Nieves. “Tears me apart, I hope somebody seen something somebody call the cops please let’s stop the violence.”

A family member who did not want to speak on camera told CBS4’s Amber Diaz that the suspect got away with around $500 in cash.

“He deserves to get whatever he gets, I don’t care what he is, Puerto Rican, Cuban, Dominican, Haitian, I don’t care, he needs to go to jail,” Nieves said.

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Anyone with information is asked to call Broward Crime Stoppers at 954-493-TIPS.