The Tree of Hope, a faith-based community group committed to aiding families touched by violence, will have a North Side Community Prayer Vigil in memory of Frank W. Christopher, the North Side man who was robbed and killed while delivering a pizza July 28.

The vigil calls on all who "decry the violence that is enveloping our city" to come to the Allegheny Center Alliance Church, 250 E. Ohio St., at 5 p.m. next Saturday.

There will be a candlelight march to the site of Lillen's Pizza, where Christopher was employed, on East Ohio Street.

For more information, call 412-434-0404.