President Barack Obama will visit Chicago on Friday, when he will discuss gun violence as he focuses on his economic message from Tuesday's State of the Union address, according to the White House.

Obama will "talk about the gun violence that has tragically affected too many families in communities across Chicago and across the country," a White House official said in a statement.

The president's visit answers calls from Chicago anti-violence activists that Obama talk about the recent spate of gun violence in the city, several of the activists said.

"This is an important issue," said Cathy Cohen, founder of the Black Youth Project, which attracted about 45,000 signatures by Sunday night in an online petition that urges Obama to speak up. "We think of this as a victory for all of us."

The group posted the petition on change.org shortly after Hadiya Pendleton, 15, was shot to death last month at a South Side park. The King College Prep student was slain about a week after performing with her school band at Obama's inaugural festivities.

Read it at Chicago Tribune.