He helped Madison Central to the state title as sophomore with a 15–0 record, while his junior (9–2) and senior (10–3) teams also advanced to the playoffs.

At the University of Tennessee in 2002, he played in thirteen games for the Volunteers as a reserve defensive end.

In 2003, he moved into the starting lineup at left defensive end during the season's fourth game against South Carolina.

In 2004, he started twelve games at left defensive end, coming off the bench against Georgia.

He recorded 43 tackles (34 solos) and ranked second in the conference with seven sacks and 13.5 stops for losses of 53 yards.

He finished third in the SEC with 16.5 stops for losses of 78 yards, the eighth-best season total in school history.

[11] In the 2009 season, he had five sacks, 45 total tackles, and two passes defended, and one fumble recovery.

[18] In the opening game of the 2014 season, in addition to his usual defensive role, Haralson came in for two plays at fullback, serving as a lead blocker for Khiry Robinson, who scored a touchdown behind Haralson's block in the second quarter.

[21] At the time of his death, Parys worked in sales for a San Francisco-based startup.

[citation needed] In March 2022, it was revealed that the Santa Clara County Medical Examiner-Coroner's Office determined Haralson died of a stroke caused by a "rupture of (a) cerebrovascular malformation".