Texas teen murders his family and two dogs at their home in Aransas Pass, before posting graphic photos of their bodies on social media

Victims include the shooter’s parents, 13-year-old sister, and two family dogs

Police say 15-year-old William Quince Colburn III posted ‘disturbing’ photos of slain family

He further warned that he would commit school shootings, alerting cops to swoop on the trailer home

Rather than give himself up, Colburn III turned the gun on himself

Inside the home cops found the bodies of his parents William Colburn Jr., 62, and Jana Colburn, 53, and his 13-year-old sister Emma Colburn along with the family pets

Police said Colburn III who shot himself dead, had at least two guns and a rifle with a large quantity of ammunition

 A 15-year-old boy in Texas shot his family and two dogs dead and then posted disturbing photographs 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 62-year-old William Colburn Jr., 53-year-old Jana Colburn, Colburn III and 13-year-old Emma Colburn. 

The couple is survived by at least two older children. A GoFundMe started by Mahria Batts explains that she’s fundraising on behalf of her Siblings, ‘for us to put our Mother, Father, Little Sister and Brother into their final resting places.
Batts adds that the tragedy that occurred on their mom’s birthday has them hurt, lost, angry and needing to understand the tragic events that claimed the lives of four family members.
The surviving children 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.’
‘Instead, we were devastated with news that has broken us to our core,’ Batts wrote.

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.