David Glenn Lewis disappeared from his home near Amarillo, TX Super Bowl weekend in 1993. No one knew what happened to him for 11 years until a John Doe was identified in Yakima Washington, his loved ones were left with more questions than answers.

Sources:

The Strange Case of Missing Amarillo Lawyer David Glenn Lewis (987thebomb.com)

David Glenn Lewis (1953-1993) - Find a Grave Memorial

Death of David Glenn Lewis - Wikipedia

The Mo(u)rning Commute: The disappearance and death of David Glenn Lewis : r/UnresolvedMysteries (reddit.com)

David Glenn Lewis: Cross Country Conundrum (lostnfoundblogs.com)

Jun 27, 1993, page 37 - Fort Worth Star-Telegram at Newspapers.com

Google used to identify long-lost victim (nbcnews.com)

The Strange Disappearance and Death of David Glenn Lewis - HubPages

1993 hit-run victim is finally identified (doenetwork.org)