Video: Erratic driver swerves on Texas highway moments before striking church bus, killing 13 WARNING: This video contains graphic language that may not be appropriate for some audiences.

When Jody Kuchler and his girlfriend, Thania Sanchez, noticed the white Dodge dually driving in front of them on a South Texas highway was swerving back and forth over the center line, they took out a camera phone and pressed record.

Kuchler and Sanchez shared the 15-minute video clip with mySA.com that shows the tense moments before the truck ran head-on into the bus near Garner State Park, killing 13 senior church members from New Braunfels Wednesday.

RELATED: Speculation rampant in Leakey over cause of deadly wreck

WARNING: GRAPHIC LANGUAGE. Watch a clip of the raw footage in the video player above. See the fully processed video here.



In the footage, the white truck swerves and drifts back and forth across the two-lanes of U.S. 83 in Uvalde County near Concan. Kuchler called emergency officials multiple times while following behind the truck, pleading and urging authorities to get the driver off the road.

"I'm following this guy in a white Dodge dually. He's all over the road, both sides." Audio of emergency calls made to the Real County Sheriff's Office by Jody Kuchler, a Leakey resident, were obtained by KSAT and detail what happened moments before the crash. less "I'm following this guy in a white Dodge dually. He's all over the road, both sides." Audio of emergency calls made to the Real County Sheriff's Office by Jody Kuchler, a Leakey resident, were obtained by KSAT ... more Photo: Zeke MacCormack/San Antonio Express-News Photo: Zeke MacCormack/San Antonio Express-News Image 1 of / 29 Caption Close Video: Erratic driver swerves on Texas highway moments before striking church bus, killing 13 1 / 29 Back to Gallery

Jack D. Young, a 20-year-old Leakey resident, was identified as the driver of the truck involved in the bus crash by the Texas Department of Public Safety.

Kuchler, who was one of the first people on the scene, said Young told him just after the crash: "I'm sorry, I'm sorry. I was texting on my phone."

"I told him. 'Son, do you know what you just did?' He just kept saying, 'I'm sorry. I'm sorry,'" recalled Kuchler, 55.

The video provided by Kuchler and Sanchez stopped recording moments before the truck crashed into the bus.

RELATED: Witness: driver who hit church bus said he was texting

According to audio of 911 calls obtained by KSAT, Kuchler told emergency officials someone needed to come out to stop the reckless driver in front of him or something bad could happen.

"Somebody needs to get this guy off the road," Kuchler said. "He's going to hit somebody head on or he's going to kill his own damn self. Somebody needs to get this guy off the road."

"He's going like 80 miles an hour right now."

Kuchler told emergency officials there were stickers on the back of the truck he saw. In photos from the scene, the crumpled up white truck had similar stickers and the video also matches the appearance of the truck involved in the crash.

kbradshaw@express-news.net

Twitter: @kbrad5