Jett (seen here in a family portrait with his mom, dad, and sister Ella) died tragically at the age of 16 after suffering a seizure during a family vacation. In an interview two years later, Preston described the "unfathomable" loss of their son: "I felt at times I was drowning. It felt like a sea of wet blankets. And I just peeled them off, layer by layer . . . I can now [say], 'I love life. My life is beautiful and amazing.'"