Minnesota Vikings When Johnson was available in the second round, the Vikings traded their fourth-round pick to the
Philadelphia Eagles for the Eagles' fifth-round pick in order to move up from the 47th overall pick to the 43rd overall pick. On October 6, 2008, Johnson made his first career interception against
New Orleans Saints quarterback Drew Brees. He finished his rookie season starting 7 of 16 games, recording 31 tackles and an
interception. The next season, he became the starter at the strong safety position. Johnson started and played in 15 games where he recorded 57 tackles and another interception. This interception was made in the end zone against the
St. Louis Rams who were on the Vikings 9 yard line before Johnson killed their long drive. Johnson's 2011 season was cut short, as he was placed on
injured reserve on November 29, 2011.
Miami Dolphins Johnson signed with the
Miami Dolphins on April 5, 2012. He was released during the preseason on August 25, 2012.
Atlanta Falcons Johnson signed with the
Atlanta Falcons on August 4, 2014.
Episcopal Collegiate School Johnson worked at
Episcopal Collegiate School, a premier private college preparatory K-12 school in Little Rock, AR, as Head Varsity Boys Football Coach, Head Strength and Conditioning Coach, Head Varsity Track Coach, Head Junior High Basketball Coach, Assistant Varsity Boys Basketball Coach.
Bryant High School In 2024, Johnson was hired at
Bryant High School, a comprehensive 10-12 public high school in Bryant, AR, as the defensive coordinator for the school's Varsity Boys Football program. Since 2018, the program has obtained five
state championships, and obtained a sixth one the same year Johnson was added to the coaching staff. ==Personal life==