Celebs React to Arizona Shooting

"I think we should all have positive thoughts and hope that you know can find an end to this kind of horrible thing," actor Robert Duvall said.

Congresswoman Mary Bono Mack, a close friend of Giffords, told "Extra," "It's really a time for a healing of our nation's soul. The American people need to come together a little bit here and focus on putting aside the hatred that's out there."

"One Tree Hill" actress Sophia Bush, a second cousin to slain 9-year-old Christina Taylor Green, tweeted, "There are no words to explain what my cousin's family is going through in Arizona. How can this be? Violence is never the answer."

Giffords supporter and campaign contributor Keith Olberman echoed the sentiment in a special edition of MSNBC's "Countdown," saying, "Violence or the threat of violence has no place in our Democracy."

"The View" women discussed the senseless shooting Monday, discussing the blame some are putting on politicians like Sarah Palin, who in March posted a U.S. map on her Facebook page showing those in Congress who supported the health bill with a crosshairs symbol. Barbara Walters said, "To blame Sarah Palin is unfair. This is not the time to start finding other targets to blame."

Six people were killed in the incident and dozens more injured when a lone gunman, Jared Lee Loughner, opened fire during a constituent meeting Saturday at a grocery story. The dead included federal Judge John Roll and the young Green. Giffords underwent surgery for a gunshot wound to the head and is expected to recover.