troops in case protests turn violent. here's jennifer mayerle of our cbs minneapolis station wcco. >> reporter: amir locke was asleep just before 7:00 a.m. wednesday when a minneapolis swat team entered the apartment with their guns drawn. in police body camera video, 22-year-old locklocke is scene lying on the couch wrapped in a blanket. a gun is visible in locke's hands, just before officers opened fire, only about nine seconds after entering the apartment. >> i've seen it happen. i've seen it happen too many timeses. >> reporter: today, locke's parents are mourning their loss. >> i should be able to tell my son that i love you and he says, "i love you, too." >> reporter: the use of no-knock warrants came under fire in 2020 following the shooting death of breonna taylor by police in kentucky. that prompted minnesota legislators to tighten restrictions on the tactic to "limit the likelihood of bad