not only no cause sited, no evidence sited, shot 71 bullets at him in 27 seconds, lied about his having shot at them and refused him waiting medical team for over an hour while he bled out - a Marine vet who worked the mines at night - and a child in the house.
http://stopthedrugwar.org/chronicle/2011/may/13/tucson_swat_team_kills_armed_hom
Did they have a warrant?