Christopher Fields was arrested in New Mexico Wednesday afternoon. Earlier in the day, he waited along the County Line Ramp along I-25 north in Denver's Tech Center, until his ex-fiancé exited the ramp for work.
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When he saw her, he pulled out a gun and fired off one bullet, which struck her in the neck, according to Fields' mother.
The ex-fiancé suffered non-life-threatening injuries according to the Arapahoe County Sheriff's Department.
"Christopher has seen councilors his whole life. He is now 27," Joyce Fields, Christopher's mother, said.
"He is deeply depressed. He was diagnosed as bipolar. He was a cutter," she added.
Joyce Fields tried getting her son more help. In May, he cut her out of his life and said he didn't want to see any more therapists.
"He is just full of anger and rage. He's pushing everyone away," she said.
It's unclear how he was able to get a hold of a gun.
"He never had a gun in his life. I don't know how he got it or why he got it," Joyce Fields said.
Fields says the system failed her son and no matter how many times she tried getting him help, it just wasn't enough.
"And now he's going to get the help he needs, in prison," she said. "It took this to get my son help."
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