A small vigil rests where 18-year-old Calvin Beam was shot and killed. Police say they're still chasing many leads and tips.
"We don't have enough to make an arrest yet, but we are working closer to doing that," says
Chambersburg's Police Chief Dave Arnold.
And investigators say they haven't nailed down a motive yet.
"Sometimes even when you think you know what the motive is that can even change when a case goes to trial based on people changing their testimony," explains Arnold.
At a vigil last week, a fight broke out, but police say it wasn't serious. They say, at this time, there's no reason to suspect any kind of rivalry between groups.
"The shoving and pushing that happened then was a result of just rumors flying around as to who did what or who was involved, and those may or may not have been true."
Officials say the public has played a substantial role in helping them develop their case.