Man Shot Dead While Talking to Pa. Candidate Hours later, a Philly teen was killed in a revenge attack By Newser Editors and Wire Services Posted Apr 25, 2016 1:05 AM CDT 42 comments Comments Chris Rabb is seen during a speech. (YouTube) (Newser) – A 21-year-old man was shot dead in Philadelphia Sunday afternoon while talking to a candidate for the Pennsylvania House, officials say. The man was shot twice in the head while speaking to Democratic candidate Chris Rabb and a campaign volunteer about the state's upcoming primary, the AP reports. "He was enthusiastic about the political process," said Rabb, who is running for a seat in the 200th District. The man told Rabb that he was planning to work at his local polling place on Tuesday. "This impressed us and we were in the process of encouraging him to join our campaign," Rabb said late Sunday in a statement. "Moments after he gave us his contact information he was murdered." Police say the man was pronounced dead at the scene. Rabb was able to pull his volunteer to safety in a nearby convenience store; they were not injured. A few hours later in the same neighborhood, an 18-year-old man was shot in the back and a 17-year-old boy was grazed by a bullet in a drive-by shooting that police believe was a gang's retaliation for the earlier shooting. The 18-year-old was taken to a hospital, where he later died. The 17-year-old was expected to recover. "I'm very frustrated by the fact that we were not able to prevent this second homicide," said Philadelphia Police Commissioner Richard Ross, per NBC10. "We do believe that these are two rival factions. What they're fighting over, we haven't pinned that down right now."