David "Knuckles Dawson" Dreger was a former contributor to Rooster Teeth and, primarily, Achievement Hunter. With Achievement Hunter, he has appeared in multiple videos including AHWU, Trials HD Achievement Guides, and more. David also was credited for 'PFL Troops' in the Red vs. Blue series.
On June 20, 2013 David Dreger was found deceased in Ambleside Park in West Vancouver, Canada after he went missing on May 26, 2013.
“Although tragic, the disappearance and subsequent location of David Dreger is not being treated as a suspicious death and we will therefore not be commenting on the case.”
— Vancouver Police Department obtained by: Gamernode.com
In May, 2014 Red vs. Blue season 11 episode 2 (Get Your Tucks in a Row) contained "In memory of David Dreger" prior to the video's outro.
“We are thankful that the prayers for discovery made by everyone during this time have been answered. It is with deep sadness that we must let you all know that David's body was discovered on June 20 near Ambleside Park. We would like to take this opportunity to thank everyone for their prayers, support and compassion. David was an exceptional, bright, caring and loving young man. We consider ourselves blessed to have had him in our lives, and are comforted knowing that he is now embraced in the arms of our Lord.”
— Love, Daryl, LeeAnn and Danielle. [Family of David]