I dont think a good line on Muhammad's motive. I think religion has been mentioned.
Malvo gave the reasons below
I edited part of this for relevence:
http://seattletimes.nwsource.com/htm...8_malvo05.html
Another defense witness, Carmeta Albarus, a Jamaican-born forensic social worker in Virginia, testified she spent 70 hours interviewing Malvo over six months. Her testimony provided some of the first clues into what Malvo's motive might have been for being Muhammad's self-confessed triggerman in the three-week rampage of sniper attacks.
She said Malvo, also born and reared in Jamaica, was consumed by thoughts of racism, oppression and injustice. "We've got problems in Jamaica," she said, "but racism isn't one of them. We're 90 percent black. I had to remind Lee the prime minister of Jamaica is black."
Albarus testified she told Malvo it was "ludicrous" for him to think the sniper attacks were the first stage in a plan to change the world through what he described as "70 boys and 80 girls, a super-generation trained and sent into the different parts of the world to bring about a just system." She said he told her, "We have to start with the children."
Horan said the $10 million the snipers demanded from the government to stop the attacks was to be used to purchase land and equipment for a compound Malvo wanted to create to fulfill his vision.