His car has been found in Berkeley, California, and they want to know why.
Rice University's police chief has been in constant contact with Wilson's mother in Oklahoma. He says she is neither encouraged or discouraged by this latest development. She is simply trying to stay objective. She essentially wants to see where the investigation goes.
Wilson, a junior majoring in computer science, was last seen by his roommate in their off campus apartment on December 14, exactly six months ago Saturday, just days before he was supposed to turn in his final.
Wilson's 2004 four door Dodge Neon with Oklahoma license plates was found abandoned on a residential street in Berkley. While the vehicle was tagged several weeks ago, it was towed just this week.
Berkeley police are examining the car to see if there's any information that might help investigators here figure out where Matthew is.
"There's no sign of foul play in the car," said Rice University Police Chief Bill Taylor. "There are some pieces of property of Matthew's found in the car. The car had been sitting for quite some time. It was quite dusty and a little bit of mold in the car."
Some of Wilson's clothes, books and a backpack were recovered from his car. Investigators with the Berkley Police Department are hoping to generate some leads. So far, the trail has run cold.
If you have any information on this case, give Crime Stoppers a call at 713-222-TIPS. Rice University and Crime Stoppers are offering a combined reward of $15,000. You don't have to give your name.
Slideshow archive | ABC13 wireless | Help solve crimes