Crimefighters: Who killed this 19-year-old bicyclist?

PHILADELPHIA (WPVI) -- "My son had a family that loved him, that misses him," Linda Vernon told Action News.

Vernon says her entire life changed on October 18th.

"Some days I don't know if I'm coming or I'm going, because I lost a piece of my world, and that was my son," she said.

Just before 3 p.m. Amir Pinkney was riding a bike with a friend in the area of 52nd and Locust streets in West Philadelphia.

Vernon says that's when her 19-year-old son was shot.

"His friend called the police because Amir told him he was shot in the leg before he passed out," she said.

Pinkney died at the hospital.

"I'm not supposed to bury my children, my children are supposed to bury me," said Vernon.

Vernon tells Action News Pinkney's friend was able to tell police who the shooter was, but investigations are complex, and more evidence is needed.

"I just want justice for my son," she said. "No information that anybody knows is too little or too big. No parent, no mother, should have to go through what I'm going through."

The City of Philadelphia is offering up to $20,000 in reward money for the arrest and conviction of the person responsible.

All you have to do is call the Citizens Crime Commission at 215-546-TIPS.

All calls will remain anonymous.