Why would a grown man run away an leave his truck ,yet risk keeping the same phone?
There could be several reasons why he would run away.
1) He was just dismissed by his family. He had been through hard times in the last few years (separation from his wife, kids, ect) so maybe it was time to start fresh.
2) He could be running from the Oklahoma Meth business. The Oklahoma Meth business, like most illegal businesses, is a very unforgiving one. This, of course, this only applies IF he was involved.
3) He could have made a change in sexuality and was afraid of acceptance/rejection from his family and friends. This, of course, only applies IF he had changed his sexuality. Based on social media references, there is a possibility of a change in sexuality, but there is nothing at this time to confirm this.
Regardless, I do NOT think Tommy ran away. I personally think foul play is involved in this case. To echo SeriouslySearching, I think there is a connection to the area his truck was found and his disappearance. I think some sort of altercation occurred with someone in that area.
All of my statements, of course, are my own opinion and should not be considered fact.