On the day of the shooting, a mumbling Jared Loughner ran into the desert near his home after his father asked him why he was removing a black bag from the trunk of a family car, sheriff's officials said. Loughner resurfaced later Saturday when authorities say he showed up at a grocery store in a taxi and shot 19 people, killing six, including a federal judge and a 9-year-old girl. Investigators provided the new details to The Associated Press and said they're still searching for the bag. They suspect it could contain clues into Loughner's motives. "The bag is very important to us," said Capt. Chris Nanos, head of the Pima County Sheriff's Department's criminal investigations division. "What was in that bag and is there any relevance?" "What if he wrote a note that says, 'Hey, I'm going to go do these things and I know it's wrong but I'm still going to do them,'" Nanos said. "That'd be a pretty good piece of evidence."
The New York Times reports that officers were sent to Jared Lee Loughner's home multiple times before Saturday's attack: A spokesman, Jason Ogan, said the details of the calls were being reviewed by legal counsel and would be released as soon as the review was complete. He said he did not know what the calls were about — they could possibly have been minor, even trivial matters — or whether they involved Jared Loughner or another member of the household.