300 Interviewed in Tucson Shooting Probe [View All]

[jakeXT]

Source: CBS, Washingtonpost.com

TUCSON - A team of 250 federal investigators and 130 local detectives trying to understand why Jared Lee Loughner went on his alleged killing spree has conducted more than 300 interviews with family, friends and neighbors since the shooting. But they remain stumped about what ultimately prompted the 22-year-old's descent into violence.


...

On Thursday, he said, another FBI agent came to his house and asked to look at his silver 2003 Toyota 4Runner. The agent explained that he was looking for lodged bullets because there were 31 rounds in the magazine clip from the gun involved in the shooting, but police could only find 20-some casings, Salzgeber said. The agent spent about 30 minutes inspecting the vehicle and left without telling him whether he found anything, he said.

Rayle, the witness, said he told investigators that Loughner "seemed very enthusiastic about shooting people. The way he went about it, he was really just enthusiastic about shooting bullets into people."

Rayle's companion, Tennen, said that unlike many witnesses who stayed at the site for hours, she and Rayle left the Safeway parking lot shortly after medical personnel arrived. Sheriff's deputies were guarding the parking lot exits to catch witnesses, she added, and she gave the deputy their names, addresses and phone numbers.

Read more: http://www.cbsnews.com/stories/2011/01/18/politics/washingtonpost/main7257436.shtml

---

I'm not sure what this means, aren't casings what remains and is ejecting to the side when you fire a gun ? Why does he know that he had 31 rounds if he can only find 20 something casings?

Or have they found 31 bullets in people and objects and therefore think he had 31 rounds in his magazine, but only 20 something shells have been found ?