Texas boy, 15, murders his mother, father, sister and two dogs before posting graphic photos of their bodies on social media, warning he would commit school shooting and then killing himself as cops swooped

Police say Aransas Pass, Texas, teen William ‘Quince’ Colburn III (pictured at left) fatally shot his parents at little sister (upper right) at an RV park (bottom right), before posting photos of their dead bodies on social media. When officers arrived at the family’s home to investigate, the 15-year-old boy turned the gun on himself. Two dogs were also killed. Relatives said they’re struggling to understand the triple-suicide, which left them ‘hurt, lost, and angry’.

  • Police say William Quince Colburn III posted ‘disturbing’ photos of slain family
  • Victims include the Aransas Pass teen’s parents, 13-year-old sister, and two dogs
  • When police arrived at the family’s RV to investigate, Colburn III shot himself

A 15-year-old boy shot his family and two dogs dead and then posted disturbing pictures of their bodies on social media before killing himself when police arrived.

William Quince Colburn III took to social media to admit killing his parents and sister before sharing images of his slain family and threatening to carry out more violence at an unnamed school.

The posts led local cops to his RV home in Aransas Pass where they tried to coax him outside – only for the teenager to shoot himself dead.

Inside they found 63-year-old William Colburn Jr., 53-year-old Jana Colburn, Colburn III and 13-year-old Emma Colburn.

Mahria Batts, who lost her parents and siblings in the shootings, said she learned of the sad news on the morning of her mother’s birthday.

‘This morning, we all woke up excited to tell our Mother a Happy 53rd Birthday,’ Batts said on a GoFundMe page.

‘Instead, we were devastated with news that has broken us to our core.’

Batts said she was struggling to understand the slayings.

‘As you can imagine, this is hard for us right now,’ she said. ‘This is not something we ever imagined to happen. We were not prepared for one loss, yet alone our.

‘We are hurt. We do not understand. We are lost. We are angry.’

Police said that had it not been for the ‘speedy action’ of the social media website and other teens within the group where the threat was made, ‘we might well have been working on an even more tragic event later this morning.’

San Patricio County Sheriff Oscar Rivera said he was thankful police acted quickly in the case.

‘I´m glad that we were able to find him before something worse could have happened,’ Rivera said.

Rivera said it was unclear what school the teen might have been threatening. He said the teen wasn’t registered at any local schools and authorities believe he was homeschooled.

‘I’m not sure which school he planned to attack but he certainly had the weapons and ammunition to do so,’ Rivera said.

He said the teen had at least two guns and a rifle.

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By Michelle Thompson For Mailonline15:11 EDT 16 Sep 2021 , updated 13:15 EDT 17 Sep 2021

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