McGarigle played for Saint Tarcissus on the northwest side of Chicago throughout his grammar school career.
[6] In 2009, the Tuskers finished an undefeated regular season only to lose to the Las Vegas Locomotives in the 2009 UFL Championship Game.
[7] McGarigle was one of the team's defensive leaders, and recorded 34+1⁄2 tackles, one sack, one interception, and a forced fumble.
He subsequently served as a defensive quality control coach for the Green Bay Packers.
On January 4, 2018, it was announced that McGarigle would return to Northwestern as an assistant coach on Pat Fitzgerald's staff.