(CBS) — Mayor Emanuel gathered Monday with parents and others at Saint Sabina Catholic Church, calling for an end to Chicago’s violence.

Father Michael Pfleger says another violent weekend does not mean a deadly summer.

“It’s up to us what happens tonight, tomorrow and up to next weekend,” he said.

Emanuel says speaking to the parents of murdered children is the toughest part of his job.

“I am done making these phone calls,” he said. “I have no words to say anymore. There is nothing out there that is more powerful than what’s in here.”

It was a particularly violent weekend in Chicago, with eight killed by gunfire and at least 44 wounded, including five children.