A Houston millionaire facing a civil suit over a fatal drunk driving crash has adopted his 42-year-old girlfriend.

John Goodman, 48, faces criminal charges in Florida for a drunk driving crash in 2010. Detectives said Goodman's Bentley T-boned Patrick Wilson's Hyundai at an intersection. Wilson, 23, was killed in the crash.

In traffic reports, police said Goodman walked away from the scene and did not call 911 for 54 minutes.

Prosecutors said Goodman's blood-alcohol level was .17, more that twice the legal limit of 0.08. Investigators said they snapped a photo of him grinning in a hospital bed just after a nurse drew his blood for the test.

Wilson's parents filed a $100 million civil lawsuit against Goodman for damages.

"In order to avoid some of the financial risks, in October he adopted his 42 year-old girlfriend," said Shelby Hodges, editor at large of Culturemap.

The adoption gives Heather Hutchins, who is now legally considered Goodman's daughter, access to his other two children's trust fund, which allows her to withdraw money from it immediately.

Goodman's criminal and civil trials are expected to begin in March.