Everilda Duran Watson, 50, was last seen in Las Vegas on July 13, 2006, while in the city with her husband, John Matthus Watson III. Her son reported her missing on July 15 after she failed to make contact. John Watson initially told investigators the couple had separated and that Everilda had left to move to Central America, leaving a note, her wedding ring, credit cards, and keys behind, and she never boarded a scheduled flight to Guatemala.

Investigators say evidence tied John Watson to a violent disappearance: Everilda’s blood was found in the shower drain of a Tuscany hotel room, on the carpet, and in Watson’s Jeep Grand Cherokee. Prosecutors contend he checked into the hotel under an alias wearing a wig and fake mustache, bought an electric saw and cleaning supplies the day she vanished, and that a tarp later recovered in a mountain dump was stained with her blood. Watson was arrested shortly after the missing-person report for carrying false identification; authorities also reported finding wigs, fake mustaches, and cash in his possession.

What details about Everilda’s last hours or the trip to Las Vegas might still help piece together what happened to her?