Five people have been killed and at least two others wounded in the Kingsessing neighbourhood of Philadelphia on Monday night, when a gunman dressed in a bullet-proof vest and armed with an AR-15-style rifle and a handgun opened fire. The mass shooting unfolded at around 8.30pm when Philadelphia police said the 40-year-old suspect left his home and began shooting at victims. Police initially said that four men were killed but early on Tuesday revealed that a fifth victim, a 31-year-old man, had since been found dead inside a home. Two children – aged two and 13 – were also injured in the shooting but are in stable condition. Responding officers chased the suspect and arrested him on the scene. As well as the weapons, a police scanner was found. The identities of both the suspect and the victims have not been released. While the motive for the massacre remains unknown, Police commissioner Danielle Outlaw said in a press conference that “at this point all we know is that this person decided to leave their home and target individuals”. A second person was also taken into custody with police saying they believe the individual returned fire on the shooter. Read More Philadelphia shooting: At least four dead as heavily armed gunman opens fire at random on streets The aftermath of mass shootings infiltrates every corner of survivors’ lives Two killed, 28 injured and manhunt on for gunmen: How a Baltimore block party turned into a bloodbath