Jared Loughner researched lethal-injection cases and assassins before allegedly shooting 19 people - six fatally - in Tucson on Jan. 8, according to the Washington Post.
Law enforcement sources who wish to remain anonymous, told the Post that Loughner looked at internet sites on the process and effects of lethal injection.
"The impression investigators have is that he was trying to educate himself on assassinations and also research the consequences."
Prosecutors hope to use the information they have found on Loughner's computer, along with notes seized in his home, to indicate that Loughner, 22, was not insane and knew right from wrong. They have turned over to the defense the information they obtained from the computer, as well as discs containing about 250 interviews conducted by investigators.
Loughner, whose lawyer entered a not-guilty plea Monday, is charged with three counts of attempting to kill federal employees, including Rep. Gabrielle Giffords, who is recovering from a gunshot wound to the head.
Giffords was transferred early Wednesday from Memorial Hermann-Texas Medical Center to TIRR Memorial Hermann. Doctors say she has been making good progress in her recovery since arriving in Houston on Friday.
Now, they say, Giffords will begin a full rehabilitation program.
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