Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

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Jacob D’Shaun Ybarra, 20, was shot and killed in the middle of the night on April 18, 2021, while sleeping in a house near downtown Mart, Texas. The shooting occurred around 2 a.m.; Jacob succumbed to his injuries at the scene. The small community of Mart was described as deeply shaken by the unexpected violence.

Investigators say the shooter was 23-year-old Zamar Kirven, a former Mart High School football teammate. Kirven allegedly was under the influence of LSD and in a paranoid state when he shot Jacob and another young man, Sabion Kubitza; a third person, Shatydrick Bailey, reportedly survived an attempted killing. Kirven was arrested the same night and charged with capital murder; he was later convicted and sentenced to life without parole.

The killings had a lasting impact on the families and the tight-knit town of Mart. If anyone knew Jacob, Sabion, or saw activity near downtown Mart in the early hours of April 18, 2021, please share information that could help the community and the victims’ families.