UPDATE - 12/18/25, 2:20 p.m. ET: Greg Biffle, his wife and two kids were all on board his plane when it crashed and resulted in multiple fatalities, according to a family friend. "Unfortunately, I can confirm Greg Biffle, his wife Cristina, daughter Emma and son Ryder were on that plane...because they were on their way to spend the afternoon with us," Garrett Mitchell wrote via Facebook on Thursday, December 18. "We are devastated. I'm so sorry to share this." Mitchell is best known as his social media alter ego Cleetus McFarland, and has been friends with Greg, 55, for years.