The thing I found most interesting about the whole interaction is that the first thing the police say to her when they make contact is "we looked around outside and didn't find anyone". Like they're challenging her to contradict them.
That is technically true, but it omits some very relevant information, i.e. that they found a vehicle parked nearby which had very clearly been broken into. That might not have happened that evening, but they don't know that. And they don't mention it when they talk to her. They instead start by saying that the reason she called (she heard a prowler) could not be confirmed. This statement sets up the entire tone of their interaction. There's nobody for them to arrest, so now they're clearly annoyed that she's wasting their time. They start treating her like a suspect instead of a victim. They want her name, her ID. They invite themselves in without cause and start looking through her house. It escalates from there, and ends in murder. The shooting officer then outright lies about the circumstances of the shooting, saying Massey was coming at him with a pot of boiling water and threatening him. She had put the pot down in the sink and was just standing in the kitchen. See, he'd turned his body camera off and didn't realize his partner was still recording.
This was a fucking extra-judicial execution.