Perhaps severe icing, stall and spin, tangling the chute and damaging comms antennas.
Please everyone: Don’t feed the beast with speculation about sudden incapacitation and ‘evil thought’, especially when it’s a nonsensical explanation just on the cockpit ergonomics of a Cirrus and what actually happens if you point most any ‘light’ aircraft straight at the ground. It’s an awful enough outcome without the AvMeds of the world milking it before the smoke’s dissipated. The pilot’s medical history and domestic circumstances will be revealed, eventually.