One day after her 40-year-old son, 22nd District Officer Moses Walker, Jr. was murdered, Wayne Walker lead family, friends and fellow officers to the place where he was gunned down. They lit candles and held hands as Walker's mother lead them in prayer on Sunday evening.
Walker was shot and killed while on his way home after a shift. It happened on 20th and Cecil B. Moore Avenue on Saturday around 6 a.m.
Investigators say he was walking to a bus stop when he was shot several times by an unknown suspect. He was struck at least twice in the chest and abdomen, according to officials.
When police arrived, investigators say Walker was found face down on the ground with his weapon underneath him. Police believe he got the weapon out of his holster but are unsure if he fired it.
They also say he was not in uniform at the time of the shooting. Investigators say the shooting may have been a robbery though they have not yet confirmed this.
At Sunday's vigil, community activists encouraged the killer to surrender. "Whoever you are, be a man, man up, give yourself up," said Evelyn Gray.
The city of Philadelphia is offering a $20,000 reward for the arrest and conviction of Walker's killer. The Philadelphia Fraternal Order of Police is offering an additional $15,000.