Alexander was raised by a mother who worked all of the time to support her family while his father was in prison.

[2] David Barham accepted a job as the football coach at Christian Life Academy in Baton Rouge, LA and he brought Alexander with him.

Alexander became a dominant player, leading his team to district titles his junior and senior year.

[1] Barham began to actively pursue colleges on his behalf as Alexander was listed as a top 20 high school linebacker.

In 2006, Alexander was named to the All-Big 12 Conference First-team, the Big 12 Defensive Player of the Year, and an AP and AFCA All-American.

[4] Alexander was injured in the Vikings first preseason game of 2007 and suffered a torn ACL, resulting in season-ending surgery.