Update:

Sean McMahon has been located and is safe. 

The Dallas Police Department is asking for the public’s assistance in locating a critical missing person, Sean McMahon.

On August 15, 2017, at about 9:50 a.m., Sean Patrick McMahon was last seen in the 1900 block of Marydale Drive. Mr. McMahon is a White male, 34 years old. He is 5’8″ tall, weighs 165 pounds with gray and brown hair, and green eyes. Mr. McMahon was last seen wearing a blue and white striped collared shirt with gray pants, driving a silver 2016 Mazda sedan with Texas license plate number HLL2600. Detectives believe Sean Patrick McMahon may be a danger to himself.

Anyone with information regarding Mr. McMahon is asked to call 911 or the Dallas Police Department Missing Persons Unit at (214) 671-4268.