The victim was identified as 25-year-old Shaquil Mack.
It happened at 52nd and Warren streets in West Philadelphia around 9 a.m. on Friday, March 22, 2019.
Police are looking for a car captured on surveillance video involved in the murder. It is a dark blue newer model Chrysler 300 last seen fleeing south on 52nd Street.
Police said the Chrysler almost collided with Mack's GMC Terrain.
They said Mack exited his vehicle and exchanged words with the driver of the Chrysler. That is when, they said, the 25-year-old was shot and killed.
"19th district police officers responded to a call, person with a gun on the highway at 5200 Warren Street. Upon their arrival, police located the victim, who is later ID'ed as Shaquil Mack, with gunshot wounds to his body," said Santo Montecalvo of the Citizens Crime Commission.
Authorities said Mack's girlfriend was in their vehicle at the time, along with his children.
"It's just the mentality out there is shoot first and don't care who else is around," said Montecalvo.
The City of Philadelphia is offering up to a $20,000 reward 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.
"We do not divulge your identity. As long as you don't tell nobody, we won't tell nobody who you are. You get a code number. That code number entitles you to the reward money," Montecalvo said.