According to court documents, Simpson is an American Muslim who has been monitored since 2006 because of his association "with an individual whom the FBI believed was attempting to set up a terrorist cell in Arizona," U.S. District Judge Mary H. Murgia said in her order convicting Simpson.
Prosecutors alleged that the false statement involved terrorism, but Murgia's order said prosecutors hadn't proved that part of the allegation. Another federal judge later sentenced Simpson to three years of probation.
In Dallas on Monday, the bodies of the men could still be seen on the ground near their car; they were later covered with a tarp. Investigators were still processing the crime scene, Harn said.
The event on Sunday was hosted by the New York–based American Freedom Defense Initiative, a group described by the Southern Poverty Law Center as a hate group. The contest offered $10,000 for the best cartoon depicting Muhammad.
According to Islamic tradition, any physical depiction of Muhammad — even a respectful one — is blasphemous. Drawings similar to those featured at the Texas event have sparked protests around the world.
Bosch Fawstin, who won the contest, is a cartoonist and blogger, according to the Dallas Morning News, which said the winning cartoon shows Muhammad wearing a turban and holding up a sword, angrily saying, “You can’t draw me.” An artist shown in the cartoon continues adding a stroke to the black-and-white sketch of Muhammad and responds, “That’s why I draw you.”
The event featured speeches by Pamela Geller, the president of the American Freedom Defense Initiative, and Geert Wilders, a Dutch lawmaker known for his outspoken criticism of Islam. He received several standing ovations from the crowd and left immediately after his speech.
Wilders, who for a decade has advocated closing the Netherlands to migrants from predominantly Muslim countries, has lived under round-the-clock police protection since 2004. The group sponsoring Sunday's event said it paid $10,000 for off-duty police officers and other private security.
Geller told the AP before the event that she planned the contest to make a stand for free speech in response to outcries and violence over drawings of Muhammad. She said in a statement after the shooting that it showed how "needed our event really was."
The Council on American-Islamic Relations (CAIR), the country's largest Muslim advocacy organization, condemned the attack in a statement.
"We reiterate the American Muslim community's support for freedom of speech — even bigoted speech — and its repudiation of terrorism in any form."
CAIR added that Geller and Wilders, along with the perpetrators of the attack, "all seek to provoke a downward spiral of mutual hostility and mistrust in America and around the world."
Al Jazeera and The Associated Press