The grandmother of a seven-year-old shot and killed by Detroit cops in 2010 testified this week in court about what she saw that night–and the details are harrowing.

The 50-year-old Mertilla Jones said that the police “came to kill” and that when they shot Aiyana Stanley-Jones she saw “the light leave out of her eyes and the blood started gushing out her mouth and she was dead,” according to the Associated Press. The police came in and immediately threw a stun grenade before the shot was fired that killed Stanley-Jones.

She said her head was propped up on the couch armrest while she slept, and that the officer held the gun right next to her when it went off. “The gun went off and shot her in the head. I started screaming and hollering. … `Y'all done killed my grandbaby,’” said Jones.

Stanley-Jones was killed by a Detroit police special response team, and now the officer who pulled the trigger, Joseph Weekley, is on trial for involuntary manslaughter. The death of the seven-year-old captured national attention. The team was being followed by a reality television show crew.

In court, another member of the police team that conducted the raid said they didn’t know children were in there, even though a neighbor testified he tried to tell the police that there were kids inside. But when officer Larry Davis was asked whether the police would have changed tactics had they known a seven-year-old was in there, he replied: “Probably not.”

The grandmother said in court that “they knew there were children in there. So why would they come in there like that? They came to kill, and they killed a 7-year-old.”

The raid was meant to nab murder suspect Chauncey Owens, who was arrested that night. He lived in the upstairs apartment.