Dallas police speculate that teenage mischief may have played a role in a 63-year-old man's death.
The man was sitting outside of a car wash on Houston School Road when the teens began throwing rocks in his direction. One of the rocks shattered a window beside the man, startling him.
Witnesses said the man then fell to the ground where he died. Doctors said the man had a heart attack and died.
The teens, if caught, could face serious charges.