By Mike Dunn

PHILADELPHIA (CBS) — Monday’s Martin Luther King Day activities in Philadelphia now include a late-afternoon gathering in Juniata, the neighborhood where four teens were ambushed in a packed car last Tuesday.

The Mayor, the District Attorney and community leaders plan to rally in Juniata at 4 p.m. on Monday, amid continued concerns that the fatal shooting of three teens could lead to retaliation.

“The nature of this incident personifies, in a microcosm, everything the mayor cares about, and we’ve been talking about. So we think its an opportunity to engage the community in a conversation,” explains Managing Director Rich Negrin.

The event will take place at the Bethel Temple Church on Allegheny Avenue. The stepfather of three of the teens in the car has been charged in the incident, though officials say the teens had been out at the time looking for a fight.