McAllen police are looking for Daniel Gilberto Perez.
Detectives said the 33-year-old Perez murdered Summer Meland on September 27, 2008 at the 300 block of W. Yucca Street.
The victim was found fatally shot in her bedroom.
Perez is believed to be on the run with his wife, Virginia Garcia.
He has an extensive criminal history.
Perez is 5'3" and weighs 140 pounds, with brown eyes and brown hair.
According to police, Perez should be considered armed and dangerous.
If you have any information, call the McAllen Crime Stoppers Line at (956) 687-TIPS.
Callers can remain anonymous and may receive a cash reward if their tip leads to an arrest and conviction.
Click here for the Fugitive Finder page