Romney: 'Many' of suspect's weapons were illegal

LONDON (AP) -- Mitt Romney says many of the guns used in the mass shooting in Colorado were obtained illegally and that changing laws won't prevent gun-related tragedies. But the weapons suspected gunman James Holmes used to kill 12 people in Aurora, Colo., were obtained legally.

Romney tells NBC News that "this person shouldn't have had any kinds of weapons and bombs." Romney says it was illegal for Holmes to have "many" of the weapons already.

Holmes broke no laws when he purchased an assault-style rifle, a shotgun and Glock handgun, and he passed the required background checks.

Romney's interview with NBC aired Wednesday.