As police continue to search for a missing Colorado mom, a friend is coming to the defense of the fiance at the center of the mystery. According to police, Patrick Frazee was the last person to see 29-year-old Kelsey Berreth before she vanished on Thanksgiving Day. Sonja Oliver says she has known Frazee for five years. “I've always considered him to be a gentle soul. Soft spoken and just really down to Earth and practical,” Oliver told Inside Edition. He is cooperating with the investigation.