Williams spent his first year in Jamaica before returning to live in Central Jersey with his parents, sister, and two brothers.

[2] He earned All-State Class AAAA first-team honors as a senior running back and was selected as The Morning Call Player of the Year.

Playing as a true freshman in 2010, Williams showed his potential while sharing the backfield with Montel Harris and Sterlin Phifer.

[10] As a sophomore in 2011, Williams continued to improve, but played less time with sharing the backfield with Rolandon Finch, Tahj Kimble, and Montel Harris, starting seven of 10 games and rushing for 517 yards on 124 carries with four touchdowns.

[11][12] As a junior in 2012, he continued to be a reliable option, although for a pass-heavy offense, starting eight of nine games, rushing for 584 yards on 130 carries and four touchdowns.

With a change in coaching during the offseason, Steve Addazio brought in new coordinators and a new style of offense focused heavily on the run.

[15] Williams started off the year as a powerful weapon, running for 114 and 204 yards respectively in wins over Villanova and Wake Forest, and scoring once in each game.

[18] However, he bounced back against #8 ranked Florida State and ran for 149 yards as the Eagles nearly upset the eventual National Champions.

He momentarily tied the record, but unfortunately lost a yard on his last rushing attempt of the game, bringing his total back down.

[24][25] The following week, playing on senior day, Boston College's final home game of the season against NC State, Williams broke his own record and ran for 339 yards on 42 carries, scoring twice.

[26] The performance also surpassed the Atlantic Coast Conference (ACC) record, previously set at 329 yards by John Leach of Wake Forest in 1993.

[28] His successes and statistics as the league's leading rusher made him the front-runner for the Doak Walker Award as the nation's best running back.

After the success against North Carolina State at home, the Eagles took on Maryland for the first of their final two road games of the season.

[56] In Week 14, Williams suffered a broken wrist on the final play of the game and was ruled out for the rest of the 2017 season.

[61] Since his college years, Williams had been writing what he calls a "philosophical memoir", which is titled "A King, a Queen and a Conscience."

Williams also sought to secure a patent for a "compression shirt" type of athletic gear that could improve backfield running.