"I wanted to enjoy it with my family first," he said Monday afternoon. "I committed Saturday."
"Alabama's program has a lot of things going for it.They just won the championship, so you have the chance to compete for one when you're there. They're the best team in college football and they compete against the best, also."
Williams actually committed to the Crimson Tide while sitting down with Nick Saban.
"He just smiled from ear-to-ear, he just shook my hand and said 'welcome to the family,'" he added.
Williams was hosted by Landon Collins on the trip, and he helped bridge the gap of comfort between Louisiana and Alabama. The 6-foot-4, 230-pound defensive end/outside linebacker than relayed the message to mom.
"My mom will come to every one of my games," he said. "Alabama's not too far from me. It's a great fit for me.
"Denzel Devall made me feel comfortable, he's from Louisiana, too. Those guys mad made feel good with the program."
Scout.com/FOX Sports NEXT projects Williams projects as a rush end, but Alabama likes him as a potential 'Jack' linebacker because of his versatility.
"I can play all three linebacker positions, and I look to contribute as a true freshman," said the No. 20 defensive end in the class of 2013. "Even if it's special teams, or kickoff, I just want to contribute.
"I also want to compete and practice with the best, and I like the way they develop their players. I want to be a part of that."
Williams knows what his strengths are in speed and leverage, and he wants to add to it before setting foot on Alabama's campus as a true freshman this fall.
"I'm just going to work on my grades before the next level," he quickly prioritized. "Physically, I want to improve upon my speed. I just want to be the best linebacker I can be. I ran a 4.5 (second 40-yard dash) without even running track before, I know I can get it down to 4.4 if I train. I want to be 255 or 260 (pounds) without losing my speed.
"You gotta be fast enough to run a guy down and quick enough to turn your hips."
Williams added that he is relived that the process of finding a college is over, and he's not looking back any time soon.
"I'm not taking any more visits. I'm locked-in," he said of his commitment.