FORT WORTH — Brownwood graduate and former TCU starting quarterback Casey Pachall is leaving the university to seek in-patient treatment at a drug and alcohol facility, according to Horned Frog head football coach Gary Patterson in Tuesday afternoon’s press conference.

Pachall, a junior, was suspended indefinitely from the TCU football program on Thursday after he was arrested for suspicion of driving while intoxicated. Before the start of the football season, the Fort Worth Star-Telegram published a report that Pachall had failed a drug test two weeks prior to a campus-wide drug raid in February that resulted in the arrest of Pachall’s former roommate and teammate, Tanner Brock. Pachall admitted to police officials during the investigation that he had used marijuana, cocaine and ecstasy.

“We want to make sure we can make this turn into a positive,” Patterson said during Tuesday’s news conference. “Casey’s parents, Casey and I, we all agreed that there was only one way to change the path he was on — to step away from it. ”

Patterson added the option would be available for Pachall to re-enroll at TCU and rejoin the program in the spring semester after his treatment is complete. If Pachall resumes his college football career, he will be a fifth-year senior with one season of eligibility left.

“I don’t think one game, three games would have made a difference,” Patterson also said during the news conference. “You try to change people’s lives. That’s what this is all about. We’re talking about saving somebody’s life. I don’t care about all those other people that have opinions.

“Hopefully, what our plan is that he gets himself right and keeps the door open for us as far as an opportunity for him to be able to come back here and enroll in the spring,’’ Patterson said. ‘’He would be able to graduate in two semesters, which is the ultimate goal for us. Also, we’d get a great kid and also a good quarterback back.’’

Through TCU’s first four games, Pachall ranked fifth nationally in pass efficiency as he completed 64 of 97 passes for 948 yards with 10 touchdowns and one interception. For his career, the former Brownwood Lion has connected on 298 of 449 passes for 3,947 yards with 36 scoring strikes and eight picks.