He attended high school at Strake Jesuit College Preparatory. He played at the collegiate level at the University of Minnesota. In 1994, he was awarded the Bronko Nagurski Award as the team's most valuable player.
Darkins was drafted by the Green Bay Packers in the fourth round of the 1996 NFL Draft and was a member of the team that season and as such was a member of the Super Bowl XXXI Champion Packers, but did not see any playing time during a regular-season game. The following season, he would get to see playing time and was a member of the 1997 NFC Champion Packers.
On Wednesday, February 24, 2016, Darkins was arrested in Houston, TX for his alleged role in a drug trafficking and money laundering ring.