Sounds like he really got around scamming people.
Check it out:

A Louisiana man charged with Tampering with a Government Document in Upshur County pleaded guilty to 20 years in the Texas Department of Corrections Tuesday.

On Nov. 20, 2013, Edwin A. Williams, 55, was arrested for selling a horse with a fraudulent Coggins test to a rancher in Upshur County. TSCRA Special Ranger Larry Hand investigated the case.

According to the victim, Williams claimed he had grabbed the copy by mistake and stated he would mail the original. Within 3 days the victim became dissatisfied with the horse’s disposition and attempted to contact Williams. Williams would not reply, which prompted the victim to obtain the original Coggins test from a Louisiana animal hospital. The victim found the copy did not match the original in 15 different descriptors, including gender and original owner.