marcus kaarma's hairdresser says two days before the shooting marcus kaarma said he'd been up three nights waiting to shoot some blapinging kid -- blanking kid. >> reporter: almost all 50 states have laws on the books letting people defend themselves. montana is one of several that take the laws a step further. their castle doctrine grants residents freedom when it comes to the use of force. >> legal observers say the case hinges on whether a jury believes marcus kaarma had cause to think diren dede was there to hurt him or his family. >> you can't defend property with deadly force. >> montana state representative, a missoula democrat says in 2019, ellie hill says the national rifle association helped to push through stronger gun laws in montana that went too far. >> i have nothing against the second amendment, we gun owners ourselves. we want commonsense, safety put back into the neighbourhoods and communities. we don't need the law to make us safer. ellie hill proposed rolling back the 2009 law. that's cold comfort to diren dede's family in germany and turkey, where the teenager was buri

. >> reporter: marcus kaarma says a dangerous intruder entered his family garage april 27th, just afterhe alleged bye grabbed a shotgun, firing four fatal shots into the darkness. >> it was a choice between, in his mind, protecting himself and his family. >> reporter: the intruder, 17-year-old diren dede, a german foreign exchange student, captured in this surveillance camera image just moments before he was killed. >> we're outraged that it happened, especially someone that we loved so dearly. >> reporter: according to new court documents, kaarma's partner told police that burglars had broken into their montana in three weeks. >> they were on-edge. >> reporter: but dede could not have been the burglar because two other teenagers have confessed to earlier break-ins. a friend with dede that night told police the two were going garage-hopping. that dede was only looking for alcohol. in an affidavit charging kaarma with intentional homicide, prosecutors say phlager told a neighbor she intensally left that garage door open, a purse with valuables inside as bait. >> what other remedy did the