Watch Who Killed Santa? A Murderville Murder Mystery (2022) HD Full Movie Free on SolarMovie. Watch Who Killed Santa? A Murderville Murder Mystery (2022) online free. Our Detective is back with a critical case. Along with two celebrity guests, he's on a mission to so...Our Detective is back with a critical case. Along with two celebrity guests, he's on a mission to solve who killed Santa? But the catch: Jason Bateman and Maya Rudolph aren't given the script. They have no clue what's about to happen.