His testimony slow and measured, Jeffery Theisen, 30, said he remembered nothing of an early morning traffic accident on I-37 near the Alamodome.

He was driving drunk and going the wrong way on I-37 when he crashed head-on into a car driven by Christina Flores.

With Flores’ family sitting in the front row of Judge Ray Olivari’s 399th District Court courtroom, Theisen read from a letter his lawyer said Theisen sent them from jail as he awaited trial.

“I will always be haunted by guilt for what I did,” the letter read. “I am very, very sorry.”

Theisen’s father testified and also apologized to the Flores family.

“I know there’s nothing we can say to you to take your pain away, but I want you to know we are very, very sorry,” Mark Theisen testified.

Theisen’s lawyer asked the jury to consider probation as he called witnesses, who told how Theisen had attended hundreds of Alcoholics Anonymous meetings and spoke to many groups warning of the consequences of drunken driving since the wreck.

Theisen is facing a maximum sentence of 20 years in prison but is eligible for probation.

Closing arguments are set for 10 a.m. on Tuesday.

For a list of recent stories Paul Venema has done, click here.