Thomas Seymour and his family members are asking anyone with information about a hit-and-run motorcycle crash to come forward.
At about 11 p.m. Tuesday, Seymour, who's a motorcycle repair mechanic, says he was was driving a client's motorcycle eastbound on Military Parkway near Pruitt Avenue in Dallas when he was hit.
According to police, the driver of a white Chevrolet pickup hit the back of the motorcycle and drove off without stopping to help.
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Seymour tells NBC 5 that he was thrown from his motorcycle, knocked unconscious and left to die. He hasn't been able to sit up since the crash.
He's now fitted with a neck brace to protect his broken back. He also suffered broken ribs and isn't sure when he'll be able to walk again.
Seymour believes he was hit by a white Chevrolet pickup truck, 1994-1999 model.
"Why? You could leave somebody on the road like that – somebody who's got children, a fiancée? I didn't do anything wrong. I was just test riding my customer's bike, going back home," Seymour said.
The suspect truck may have front-end damage and red paint scrapings from the motorcycle Seymour was riding.
Seymour's cousin, Amy Seymour, posted about the crash on Facebook.
She said her cousin has a broken back in two places, four broken ribs, a neck injury, a possibly broken shoulder and a concussion.
"If anybody knows anything about this hit-and-run or the coward who did this to him please contact me or his mother Rosalie Boughton Harrison," she said. "Feel free to share in hopes that maybe we can find the guy who did this to him."
She said the Chevy had "a headlight knocked out, mirrors broke off the side, with red markings."
Her post has more than 5,000 shares as of Thursday afternoon.
Officials are investigating the crash.