"I didn't plan to commit anywhere until Friday," Chark said. "I was going to Texas A&M on Thursday, and then I was going to make my decision."
Monday's trip to Baton Rouge resulted in a change in Chark's itinerary.
"I was on campus," he said, "and LSU had everything organized. It wasn't just about football, it was about academics as well. I want to major in business, and they took me to the business building, which was very nice, and I got to talk with professors and the dean.
"I talked to some players, too. First I spoke with Odell Beckham. Basically, I just shook hands with him and Zach Mettenberger. I talked with M.J. Patterson for a while. It will be great to play with him again...I'll already know someone at LSU when I get there."
Chark spent his sophomore year as Patterson's teammate on a Winnfield squad that went 14-1 and reached the Class 2A state finals.
"I talked with the coaches again," he continued. "I talked with Coach Miles, who assured me that I'd could come in and have an opportunity to contribute as a freshman.
"Coach (Thomas) McGaughey wants me to contribute on special teams, too. The coaches said I can play the X, Y and Z positions at receiver. They said they can use me in the slot as well as outside."
Texas A&M and Oklahoma State made recent offers to Chark, but LSU got a big leg up by offering before the Aggies and Cowboys.
"It felt like home at LSU," he added. "I'm closer to home at LSU. It felt like the best decision for me.
"Everything happens for a reason. Everything is in God's hands, and this was what I felt when I decided to commit yesterday."
Following his senior year at ASH, Chark said his goal is to simply come in and play his role at LSU.