A Dallas family is offering a large reward for information about the murder of a mother's only son.
When Rosie Salas approached the car she found her only son in his car with two gunshot wounds.
The Salas family is now offering a $20,000 dollar reward and is pleading for the public's help to catch the killer.
"You can remain anonymous, but we do ask for your help," Robert Thompson, a family spokesperson said. "Robert was the type of person who would have helped anyone and he did."
Family members added that no surveillance cameras recorded the shooting.
All persons giving a tip online, texting or by phone may remain anonymous.