Woman shoots, kills ex-husband's girlfriend in front of 3-year-old twins

Chelsea Cook, a high school teacher, "fired three to five rounds at the victim," according to ABC affiliate KTVX.
1:37 | 11/27/18

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Transcript for Woman shoots, kills ex-husband's girlfriend in front of 3-year-old twins
Students and staff at sky ridge high school welcome to the new this morning one of their Rome a health teacher. Booked into jail on first degree aggravated murder the first thing was just. Shot and alarm Kimberly bird is a spokesperson for Alpine school district she's ever administrators quickly notify parents and make students aware. That 32 year old Chelsea cook is accused of fatally shooting her ex husband's girlfriend just before 7 o'clock Sunday night. This is someone they walked in the halls are in a classroom and saw. And neither was a student he nominated their teacher or a colleague who worked right next door. It happen on the fifth floor of this big hill apartment complex according to police records cook was dropping off cough medicine for her children at her ex husband's apartment. Police say there is an altercation. Cook was asked to leave but refused. Documents say cook pulled a handgun and fired 35 rounds at the big down this stuff happening in front of cook and her ex husband three year old twins. Additional grief counselors and social workers were products pirate as well today. To help students and staff make sense of this tragedy take. In the news even as an adult was hard it was like somebody you know takes the air out of the aegis almost can't comprehend it says to imagine a young. Thirteen fourteen year olds to eighteen year old having to deal with this. The question people are asking is why teachers. Aid he worked for the public school system and their trusted individuals and it's really hard to. Here and stomach that someone has done something. To this scrappy.

This transcript has been automatically generated and may not be 100% accurate.

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