Feb. 4, 2013 at 9:10 AM

KAUFMAN, Texas, Feb. 3 (UPI) -- Police said they have no motives or leads in the case of a district attorney who was killed outside of a Kaufman, Texas, courthouse on his way to work.
 
Mark Hasse, 57, was shot execution-style outside the Kaufman County Courthouse Thursday morning after he got out of his car. Police are offering a $70,000 reward for the arrests of Hasse's killers, ABC News reported Saturday.