Phoenix Police release new details in teen murder-suicide case - Dallas News |

Phoenix Police release new details in teen murder-suicide case

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"I trusted the school to do what they were supposed to do, that's what they were entrusted for, I put my daughter in their care for her to be safe," said Diannah Dinsmoore.

That was the mother of Anastasia Greer speaking out Monday night. Her daughter was killed by a fellow classmate who then turned the gun on himself.

On the day she was killed, there were rumors that there was a gun on campus, that the shooter and victim had ended a relationship, and her daughter's killer was on campus that day.

Police are painting a different pictured on what led up to the shooting.

Phoenix Police have been interviewing everyone involved, including friends of the victim and the shooter. Much of this began the day before the shooting as according to police, the 16-year-old victim Ana Greer went to school administrators to report that the shooter threatened another girl on campus, saying he was going to beat that girl up.  

Police say that girl was a former girlfriend of the shooter. Administrators of Sandra Day O'Connor got involved, talked with the girl involved in that threat, and alerted the girl's mother.

Officials say, 15-year-old Matthew Bolton, the shooter was not at school on Thursday so school officials did not speak with him.

The next day both Greer and the girl who was threatened went back to school.  Officials note that Ana was never a target of Matthew Bolton's threats.

Matthew was not in school that Friday, a school security officer who is also a police officer contacted Matthew's mom who told them her son was at home. Matthew got a ride to the house from another friend who police say had no idea what was about to happen.

The two, Ana and Matthew talked inside the home for a while and then went outside. Whatever they were talking about inside was so serious that Ana's friend asked the shooter if he had a gun and he said no. Her friend gave Ana a small knife to protect herself when the two went outside to talk.

We don't know what transpired when the two went outside as far as any type of discussion, other than to say a witness saw Matthew chasing Ana and heard gunshots. About that time the friend that lived in the residence came outside to discover Ana had been shot, he then witnessed Matthew shoot himself," said Sgt. Tommy Thompson.

Police also cleared up a rumor that there was a gun on campus on Friday saying it was just that, a rumor. As to where the shooter got the gun police say he took it from an older brother who kept it locked in his bedroom. The 15 year-old shooter broke a window to take the gun.

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