I would point out Jared Loughner didn't use an assault weapon, but the logic train has already left the station.
(Politico) – Sen. Richard Lugar (R-Ind.) this weekend called on Congress to reinstate the assault weapons ban that expired in 2004.
Lugar is the first GOP senator to call for increased gun control following the Tucson tragedy that killed six people and wounded 13 others, including Arizona Rep. Gabrielle Giffords. But Lugar, who supported the initial 10-year-long assault weapons ban when it passed in 1994, said he’s not optimistic about the chances for passing gun control legislation this Congress.