A Seattle police officer who fatally shot a pregnant mother of four told detectives he considered giving up his stun gun for months.
This footage shows the protesters chanting "Black Lives Matter" as they march down Seattle's Virginia Street.
The killing has prompted outrage among many, including Lyles' family, who questioned why the officers couldn't use nonlethal methods to subdue the diminutive 30-year-old and suggested that race played a role.
Authorities noted the shooting happened less than two weeks after Lyles threatened officers with long metal shears, and family members expressed concerns about her mental health after that incident. But she also anxious they would be taken from her because an abusive ex-boyfriend, the father of the youngest children, was causing problems for her. Some questioned why non-lethal options weren't used in the case.
'She hit the floor, ' McNew said.
Police say she confronted the officers with two kitchen knives when they responded to a burglary call at her apartment.
But a confrontation erupted.
"This is a awful tragedy on every front", Seattle Police Chief Kathleen O'Toole told KING-TV in Seattle.
But the other officer replied, 'I don't have a Taser, ' according to the police audio of the shooting.
"The officers immediately performed first aid", but fire medics arrived and determined she had died, the police department said in a statement Sunday afternoon.
A previous version of this story incorrectly said no one had left or entered the apartment in the hours before the shooting.
Lyles had been in counseling, with and without her children, and she had obtained housing past year after fighting homelessness for a decade, court records indicate.
Lyles had four children, and three of them - ages 11, 4 and 1 - were at home when she called police.
"What this sounds like is that police want to form some kind of inference, that either she's mentally ill or that she's flat out lying and trying to get officers to the apartment", Bible told the newspaper. "We'll conduct this investigation thoroughly".
Anderson said the conversation with Lyles began normally, involving what was missing in the apartment, before Lyles drew the knife as her "face changed completely". "Our goal is to get to the truth".