and that's why i struggled with it. ♪ ♪ >> narrator: the shooting of chad breinholt raised many of theinholt, we found 94 other cases where police determined or family members reported that a person had a mental health issue, mental disability, or was suicidal. and, like sergeant longman, who'd killed two other people in his career-- both ruled justified-- we found 33 other officers had been involved in at least one other shooting in their career. >> police use of force is not usually some, like, well-thought-out discretionary decision, right? it's, like, an "oh, (bleep)" moment for most of us. >> our data here... >> narrator: ian adams is the head of utah's fraternal order of police. over the course of two interviews, we shared the data we collected with him and asked about the trends we were seeing. adams said that it's difficult to evaluate trends with data that only tracks police shootings, without comparing them to all encounters with police, even the ones that don't end in violence, information he conceded isn't available in the state. >> the data around these things is so incred

. >> yeah, that's the story of michael chad breinholt, and that's actually a call that was a mental health call. it was a welfare check. it should have been a welfare check, that turned fatal and that police officer was ruled justified in his use of lethal force. and we also found that he had shot two other people over the course of his career. both of those shootings were ruled justified as well. >> sreenivasan: what has utah done, either the city police or the state, considering the amount of attention that's been paid now to the patterns of behavior? >> you know, the one thing that i can say stands out from this last legislative session is if you get a call that a suspect or a person is suicidal, it's-- the officers not allowed to respond with lethal force. so, that was a big thing that happened, that, you know, some of the people in our film, you could argue if that happens now, the legal ruling might have been much different. what's really important for people to understand is that while it feels like police use of lethal force is getting wall- to-wall coverage in this country, there'