Chicago City Wire

As more details emerge about Monday's deadly shooting at Highland Park's Fourth of July parade, state Rep. Brad Stephens (R-Chicago) has joined other lawmakers in offering prayers of support for those impacted by the tragedy.

At least seven people were killed and dozens injured when a man began firing into the crowd from a rooftop, a Wednesday ABC 7 Chicago report said. Robert "Bobby" Crimo III, 22, was identified as a person of interested and arrested in Lake Forest approximately eight hours after the shooting. 

"I'm praying for all affected by the horrific tragedy in Highland Park during what should have been a joyful celebration," Stephens wrote in a July 4 Facebook post. "We mourn with our Chicagoland neighbors during this painful time."

In a statement, Highland Park Mayor Nancy Rotering called it a "terribly difficult day" and the "bloodiest" in Highland Park history. 

"Our community, like so many before us, is devastated," she said in the statement. "It's impossible to imagine the pain of this kind of tragedy until you're confronted with it." 

Rotering went on to thank the resources that helped to move the investigation forward and said the city would continue to support each other. 

Gov. J.B. Pritzker also asked the people of Illinois to pray for victims, their families, emergency responders and all residents of Highland Park. 

"There are no words for the kind of monster who lies in wait and fires into a crowd of families with children celebrating a holiday with their community," Pritzker said in a statement. 

The governor also vowed to stand firm to end gun violence. 

The suspect, Crimo, is a rapper who goes by the name Awake the Rapper; Axios reported. Videos that have since been removed from his YouTube channel featured images of mass murders.