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Isaiah Martinez, 19, of Gallup was arrested two days after he stabbed his 17-year-old girlfriend, her brother and their dad June 14.
According to Officer Justin Benally’s report, the ex-girlfriend was taking out the trash outside their residence, when Martinez grabbed her arm and dragged her to a dirt lot on West Aztec.
The girl’s brother witnessed the attack and called for their dad. When the men approached Martinez, he responded by pulling out a small pocket knife.
The girl was stabbed on the left side of her torso. Her brother was stabbed in his left hand and received nine stitches, according to the report.
The father also had a laceration on his left torso from Martinez’s...