The Michigan Humane Society is offering a $2,500 reward for information leading to the arrest and conviction of the man who is responsible for killing a 9-week-old shi tzu puppy during a robbery at Onasis Coney Island on Detroit's west side.

Sean Harris, the robbery victim, went to the restaurant at Tireman Street and Livernois Avenue with his puppy Raja early Monday morning to pick up food for his mom.

"They ran up on me, put the shotgun in my face. He told me to give him everything. I complied, but he told me he was going to shoot me regardless," Harris said.

He gave the men money but refused to give them the keys to his car.

Harris grabbed at the shotgun and the man pulled the trigger.

"I was running with a hole in my leg. I could see my bone," he said.

The other man lifted the puppy high over his head and slammed it to the pavement, killing the dog.

Harris is expected to recover, but will need a skin graft.

Detroit police say the men who attacked Harris were driving a 2005 or 2006 gold Chevrolet Impala.  

MHS is asking anyone with information about the individual(s) responsible for the robbery and puppy's death to contact its Cruelty Investigations Department at 313-872-3401.