They cruised into Red Robin on Ford Road and Greenview at the Southfield Freeway in Detroit. The off-duty law enforcement officer, his special-needs sister, his 91-year-old grandmother, and his five-year-old son.
"It was my sister's birthday, my sister who is handicapped, she's got Down Syndrome," said the victim's grandson.
Customers couldn't help but notice the guy who was sitting alone and staring at everyone. All while not ordering a thing. They thought it was strange and took his picture.
"People came by and asked him if they could sit him down or seat him somewhere and he said I don't need any help and he kept looking around the restaurant," said the grandson.
As the off-duty officer is talking to his five-year-old son, grandma suddenly screams.
"She said oh God, please, stop."
The guy who had been sitting alone jumped up and grabbed grandma's gold necklace, ripped it right off her neck.
"I quickly turned and she's wrestling with some guy and he rips the chain from her neck and takes off running out the door," the grandson said.
He bolted from Red Robin, running down the street. The off-duty officer runs in pursuit.
"I didn't even realize until I was out the door, down the street and out in the parking lot." Your instincts kicked in. "Yeah, it's my grandmother."
The officer caught up with the guy, tackled him, they wrestled, but then suddenly the officer realizes he's off-duty. No handcuffs, no gun, no cell phone. He got the necklace for grandma, but thought it was safer to let the guy go. When he returned to Red Robin everyone was fine. Grandma had some bruises on her neck.
Customers said they saw the guy two blocks down at a BP Gas Station. The suspect lost his get-a-way ride.
Detroit Police arrested Antoine Jackson, he's 17. He is being charged as an adult. The grateful off-duty officer says he's thankful for people who stepped up to help contribute to the arrest.