Major Break in Laura Putnam Case - KCBD NewsChannel 11 Lubbock

28-year-old Robert Napier Corrigan III was arrested on yesterday in Frio county and booked in the Llano county jail, charged with failure to stop and render aid. He posted $100,000 bond and was released Thursday afternoon. Corrigan is reportedly a real estate agent in San Antonio. He was arrested without incident while dove hunting. One law enforcement officer said of the arrest, 'It was almost as if he were expecting us.'

Thursday afternoon at the accident site on Lake LBJ, authorities and Laura Putnam's parents held a joint press conference. "This is harder than I thought it would be. On behalf of our beloved daughter Laura, we'd like to express our heartfelt appreciation to (investigators)," says Laura's father Judd Putnam.

A Sense of Relief for Friends of Putnam After four months of waiting, police arrest a suspect in the Laura Putnam hit-and-run. Her friend who made the 9-1-1 call is relieved. More >>

Authorities believe Corrigan was behind the wheel of a speed boat that crashed into the boat Laura was on. The crash killed Putnam. Her body was discovered in the water, two weeks after the crash. Her fiance Justin Moore and Moore's cousin were also on the boat. Moore remembers begging the suspects to stop and help. "I was like, please help. They just sped away," says Moore.

The boat that sped away was later discovered in a boat slip at the Horseshoe Bay lakeside mansion of brothers Vincent and Berkley Dawson. The Dawsons own Budco, the San Antonio Budweiser distributorship. They hosted a Memorial Day gathering, but have denied any knowledge of the boating accident.

Corrigan is the boyfriend of Berkley Dawson's daughter Sybil. It's still unclear if someone else was on the boat with Corrigan, but Moore says there was at least one passenger.