The University of South Alabama says the student was acting erratically . A university spokesman said it is investigating what happened. 18-year-old Gilbert Thomas Collar was killed in the Saturday shooting . Along with their friend Jared , they became three best friends with the slogan `` JGC for life , '' Estes told CNN by e-mail . ` His mother and friend says he was a varsity wrestler and a good-natured guy .
The University of South Alabama says the student was acting erratically . A university spokesman said it is investigating what happened. 18-year-old Gilbert Thomas Collar was killed in the Saturday shooting . His mother and friend says he was a varsity wrestler and a good-natured guy .