Sometimes Devon Walker just wants to hear the roar.

That would be the revved-up engine of his new 2012 Camaro SS. Throaty, loud, obnoxious.

"You'd start it up and it sounds like a damn boat," said Jacob Davis, a best friend of the former Tulane safety.

Wait, new Camaro? It was that way 19 months ago when Inez Walker bought her son that awesome Chevy -- a gift for making it that far. Devon Walker was about to be a senior safety at the elite New Orleans private school. After that he was going to medical school. Of course, after that he was going to be a doctor.

It was quite a story. Davis and Walker had come to Tulane as pre-med walk-ons for the Green Wave. They are leaving as more than teammates, best friends and brothers.

"We all had same type of school schedule," Davis remembered. "Other guys had communications or something that is easier for their football schedule. We kind of guided each other through undergrad, whether it was at night studying, getting labs in on time. We kind of had each other's back."

You might have gathered by now that the Camaro still sits there at Inez' house. She's the one who worked almost 40 years at a nearby chemical plant. She's the one who retired -- happy, proud, content.

A new Camaro was the least she could do for a son who had reflected that pride, earned a scholarship. She's the one who knows her son can't use the gift she bought him less than two years ago.

Devon Walker has been paralyzed since Sept, 8, 2012, following a tackle at Tulsa. He is bound to a wheelchair with a ventilator. He'll graduate -- perhaps miraculously -- on Saturday, only one year late.

These tragedies devastate but they also reveal. These days Tulane AD Rick Dickson pays a visit to Devon as an act of charity and love. That doesn't mean he likes what is about to come out of that tricked-out Camaro.

Sometimes Devon Walker just wants to hear the roar.

"He makes me start it up so he can listen to it," Dickson said. "I checked with him to make sure all the stereo throttles are down. A couple of times I've turned it on and it literally lifts me up out of there."