Texas Department of Public Safety Regional Director Freeman Martin said that the neighbor, who has not yet been named, had 'grabbed his rifle and engaged the suspect.'.
Martin said that during the gunfight, Kelley dropped his Ruger assault rifle and got back in his SUV to flee the scene.
But another local resident, Johnnie Langendorff, who had witnessed the confrontation refused to let the shooter get away. Both he and the unnamed neighbor jumped in his truck and gave chase.
In a Facebook post, Langendorff's girlfriend Summer Caddel described how the pair had 'jumped in my boyfriend's truck and they chased that sick b*****d down in pursuit until the cops could catch up. He was able to run the shooter off of the road on 539!'
Langendorff told KSAT 12 that he'd been speeding at 95mph, while on the phone to dispatch, while the neighbor kept his rifle trained on the gunman's car.
As they approached a sharp curve in the road, near the 307 and 539, he said Kelley appeared to lose control and his car swerved off the road.
'That's when I put the truck in park,' he said. 'The other gentleman jumped out, and had his rifle on him. He didn't move after that.'
Caddel added that Kelley was gunned down within a few feet from her boyfriend.
Martin confirmed that police had found Kelley dead, saying that: 'We are not sure if it was self inflicted or if he was shot by a local resident.'
Cops also found multiple weapons and possible explosives in the vehicle.
(Excerpt) Read more at dailymail.co.uk ...
Johnnie Langendorff and Summer Caddel
Well done Johnny. With the crime stopping AND your girlfriend!!! Now thats a home grown American hero!
CHOICE will kill about 3,300 today.
A good old boy.