Nancy Pelosi's husband Paul Pelosi attacked by suspect David DePape, who shouted 'where is Nancy?'

David DePape, 42, identified by San Francisco Police as suspect in Paul Pelosi attack

Paul, the husband of House Speaker Nancy Pelosi, was assaulted with a hammer early Friday in his San Francisco home by David DePape, who a law enforcement source told Fox News was shouting "Where is Nancy?"

San Francisco Police Chief William Scott said DePape, 42, faces attempted homicide, assault with a deadly weapon, elder abuse, burglary, and several other felonies from the incident after 2 a.m.

Scott said police found DePape and Paul Pelosi, 82, fighting over a hammer during a welfare check. Officers saw DePape "violently assault" Pelosi after he took the hammer.

Officers immediately tackled DePape, disarmed him, and arrested him while calling for backup and providing medical aid. Investigating the attack's motive.

Two sources familiar with the investigation told The Associated Press that Paul Pelosi was targeted, severely beaten with a hammer, and suffered blunt force injuries to his head and body. Sources said Pelosi is being treated for bruising and severe swelling.

The U.S. Capitol Police said it is "assisting the Federal Bureau of Investigation (FBI) and the San Francisco Police with a joint investigation into a break-in at the California home of the Speaker of the House of Representatives."