NEW YORK (CBSNewYork) – The NYPD says a man who was shot and killed while walking his dog in Manhattan was an innocent bystander.

Police say the man who pulled the trigger was caught on video firing the weapon.

Winston McKay, 40, was fatally shot around 2:20 a.m. Monday near Amsterdam Avenue and West 146th Street in Hamilton Heights.

Watch: Surveillance Video Of Shooting Suspect

Police say McKay walked inadvertently into a gunpoint confrontation between two other men. Surveillance video shows a man in a hooded sweatshirt holding a rifle, appearing to shoot, and running away.

Police say the gunman missed his intended target, a 26-year-old man, and hit McKay instead.

Winston McKay, 40, was fatally shot by a stray bullet on June 10 in Hamilton Heights.

McKay’s husband, Terry Solomon, told CBS2 one moment he was in the park celebrating his anniversary with his partner of 18 years.

“My husband was an innocent person that died. If you have any humanity left in your body… turn yourself in,” Solomon said.

A few hours later, he was watching paramedics try to save the love of his life.

“I feel like 18 years were stolen,” Solomon said. “He gave me a kiss on the cheek and he said ‘Babe, be back soon. I’m going to walk Milton.’ To know I would never see him again… .”

Police say McKay was minding his own business, walking his dog, when a fight broke out nearby.

McKay was taken to the hospital with a severed artery but succumbed to his injuries.

The murder is just one of many instance of random street gunfire. Last week, a 7-year-old was hit while walking home from school. Just this morning in the Bronx, a woman was accidentally shot in the arm.

Friends said he was working as a librarian and had plans to go back to school.

“Innocent people are dying out here, for what? Because you’re arguing with somebody that you can’t just walk away from, you have to start shooting?” said Solomon. “Turn yourself in. Give me, give the family peace. I just want to world to know guns and violence like this is not the way.”

McKay was studying business at Mildred Elly College. His professors say he had dreams of becoming an entrepreneur.

“He was a very hardworking student. A very diligent, hardworking student. I would say he represent all that is good about the Mildred Elley community,” said professor Alex Bernstein.

No arrests have been made.

Friends hope the pictures and the video will help solve the random murder of a man who they have believe could have been anyone on that street.

Anyone with any information is asked to call NYPD’s Crime Stoppers hotline at 1-800-577-TIPS (8477) or 1-888-57-PISTA (74782) for Spanish. You can also submit a tip via the Crime Stoppers website, by Tweeting @NYPDTips or by texting a tip to 274637 (CRIMES) and then entering TIP577.

McKay’s classmates at Mildred Elley College will be holding a vigil for him next Wednesday on campus.