On Monday, "Swamp People" star Mitchell Guist died in his boat. A Baton Rouge news program said a passenger in his boat saw him suffer what seemed like a seizure. Guist fell in the boat and efforts to revive him failed. Mitchell and his brother Glenn shot to fame on The History Channel's "Swamp People." The show features alligator hunters, but the Guist brothers brought a whole different view of the Louisiana swamp life.