Sheriff: Loughner Not Cooperating
A 22-year-old man charged with trying to assassinate a U.S. congresswoman in a shooting spree that left six people dead has remained silent and has not been cooperating with the investigation, according to a sheriff.
Jared Loughner, described as a social outcast with wild beliefs steeped in paranoia and deep distrust of government, was due to make his first court appearance Monday at 4 p.m. ET.
At 11 a.m. ET, President Obama led the nation in a moment of silence to remember the victims.
A federal judge, a congressional aide and a young girl were among the six killed Saturday, while Rep. Gabrielle Giffords and 13 others were injured in the bursts of gunfire outside a Tucson supermarket.
Sheriff Clarence Dupnik of Pima County, where the shootings occurred, said Loughner was not cooperating and told ABC News the suspect had said "not a word" to investigators.
Dupnik said authorities were all but certain Loughner acted alone, saying "he's a typical troubled individual who's a loner."