. >> reporter: janet cooksy says her son was a good kid, a good student with big dreams. he also battled mental health. >> he was having a mental situation. sometimes he'll get a little loud. but not violent. >> reporter: caught in the crossfire was a neighbor, 55-year-old betty jones. >> why you got to shoot first and ask questions later? it's ridiculous! >> reporter: nationwide, fatal altercations between police and the mentally ill happen all too often. >> dallas 911, what's your >> my son needs to be taken to parkland, he's bipolar schizophrenia, make sure they're trained police officers. >> okay. >> reporter: this body cam video shows two dallas police officers responding to a 911 call about a bipolar schizophrenic man off his meds. we have to warn you, what happens next is hard to watch. 38-year-old jason harrison comes to the door. notice the screwdriver in his hand. >> drop that for me, guy. drop it! drop it! >> oh! they killed my child! oh, they killed my child! >> shots fired. >> reporter: eight seconds after he came to the door, harrison lay dieing in his mothe

. >> reporter: janet cooksy says her 19-year-old son was honors student studying in engineering and recently dealing with mental health issues. family called police to the home early saturday because the teen was threatening his father with a baseball bat. combative. >> reporter: 55-year-old bettie jones, a mother of five, lived in the same building. she was reportedly waiting for police to respond, then was shot along with legrier. police admitted she was, quote, accidentally struck and tragically killed but relatively jamaal cole said sunday? >> right now the compassion toward suffering of families experiencing injustice throughout our city. >> reporter: the frustration felt by this community comes amid protests over a string of deadly police shootings. video released recently showed the death of 17-year-old laquan mcdonald, shot by officer jason van dyke 16 times in october of 2014. the officer faces criminal charges. on sunday, mayor rahm emanuel called for a review how police are trained to respond to mental health issues in a kris. but family, friends, and local religious leaders holdi