- "I've got one on my six!"
- ―Riggs' last words[src]
Riggs was an F-302 fighter-interceptor pilot. In 2009, he was one of several pilots under the command of Lt. Colonel John Sheppard repelling a wave of Wraith Darts which had been launched from the Super-hive.
As the battle progressed in the skies over Area 51, two Darts broke off and headed on a collision course with the Ancient Control chair, the last line of defense for Earth. Sheppard chose Riggs as his wingman and they pursued the Darts, firing their railguns, but in turn two other Darts came up behind them. Riggs' fighter was hit by a Dart's energy weapon and exploded, killing him. (SGA: "Enemy at the Gate")