The driver of a U.S. Postal Service was fatally shot early Monday on a Dallas highway, according to local reports.
When officers arrived at the scene, on the service road near the I-30 and I-35 interchange, they discovered the postal service employee, identified as Tony Mosby, had been shot dead.
Investigators said no arrests have been made, and they're trying to determine a motive in the shooting.
The reward is being offered by the U.S. Postal Inspection Service, the law enforcement and security arm of USPS. The victim's name hasn't been released.
"At this this point in the investigation there is no evidence linking these two crimes", police said.
Homicide detectives and U.S. Postal Inspectors responded to the scene, police said. Inspector Amanda McMurrey had no immediate information Monday about the victim or where the federal employee was traveling.
All lanes of eastbound I-30 as well as the ramp to southbound I-35 were closed for hours for the investigation of the incident.