A man was caught on surveillance camera just before police say he shot a South Jersey convenience store clerk dead on Wednesday night, and investigators are seeking the public's help to track him down.



Police said the suspected gunman was caught on camera walking into the Quick N Go convenience store, on Dr. Martin Luther King Jr. Boulevard near Marshal Lane in Willingboro, Burlington County, just before 8:20 p.m.



Investigators said they believe that the suspect walked into the store, where the victim, identified as 32-year-old Matthew Mwinsori, was working. The two men then walked out into the parking lot of the store, where police say the gunman shot Mwinsori before fleeing.



Officers were called to the store at 8:20 p.m. and found Mwinsori lying in the parking lot suffering from gunshot wounds, police said. He was taken to Lourdes Medical Center, where he was pronounced dead an hour later.

Mwinsori started working at the Quick N Go a few weeks ago. Before that, he was a clerk at another convenience store across the street. A native of Ghana where he was a military officer, Mwinsori came to the United States about five years ago, friends told NBC10. He leaves behind a 9-year-old daughter still living in his homeland.

"He never did something wrong to anyone so I don't know why this happened," friend Thomas Koffi said. He hired Mwinsori for his old job.



Police on Thursday released surveillance captures showing the suspected shooter.



"We are asking the public to take a good look at these photos and share them on social media," Burlington County Prosecutor Robert D. Bernardi implored in a statement. "This person took someone's life. Somebody out there knows his identity. Please assist us with bringing him to justice."



Tipsters should contact Willingboro Township Police at 609-877-6958 or the Burlington County officials at 609-267-8300.