YouTube videos paint picture of Giffords shooting suspect Jared Loughner

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TUCSON, Ariz. -- YouTube video posted by Jared Loughner, the alleged shooter in Saturday's massacre, paint a disturbing picture.

Loughner was taken into custody shortly after the shooting at the "Congress on Your Corner" event hosted by Rep. Gabrielle Giffords. A total of 19 people were shot. Six people were killed, including Judge John McCarthy Roll and a 9-year-old girl. Thirteen others, including Giffords, were wounded.

While a motive for the shooting has not been released, witnesses said Loughner was yelling names as he opened fire. One man said Giffords was clearly the target.

While authorities have not officially released any details about Loughner, 22, sources tell 3TV the Tucson resident has some limited military experience although he never actually served, and is quite active on the Internet, even launching his own YouTube channel back in October. Some say his videos indicated anarchist leanings. Loughner also had a MySpace page, but it was taken down shortly after he was identified as the suspect.

In a news conference Saturday evening, Pima County Sheriff Clarence Dupnik alluded in general terms to Loughner's troubled past, including brushes with the law and possible mental issues.

"Based on what we know right now, you're dealing with someone who is disaffected, angry, and a coward," said Dr. Steve Pitt, a forensic psychiatrist. "Beyond that, I think it is really, really difficult to come to any definitive conclusions based on Facebook postings or YouTube rantings."

Loughner was a student at Pima Community College until last October when he voluntarily withdrew. College officials said that between February and September 2010, campus police had five contacts with Loughner for classroom and library disruptions. In September, PCC police found a video Loughner had posted on YouTube that claimed college is illegal according to the U.S. Constitution. He was suspended at that time for code of conduct violations.

According to a statement from the college:

"Loughner and his parents met Northwest Campus administrators October 4, 2010.  During this meeting Loughner indicated he would withdraw from the College.  A follow-up letter was sent to him October 7, 2010, indicating that if he intends to return to the College, he must resolve his Code of Conduct violations and obtain a mental health clearance indicating, in the opinion of a mental health professional, his presence at the College does not present a danger to himself or others.

"After this event, there was no further College contact with Loughner."