Plane crashes vertically with no burn marks MU5735 Boeing 737
Surveillance videos around the suspected scene showed that the plane had no obvious burn marks in the air, but crashed directly nose down.
Olivia Miller 
Surveillance video from the vicinity of the suspected crash site showed that the airplane had no obvious burn marks in the air but crashed directly nose down.
A Chinese Twitter user posts! I don't know if it was the plane, but this dive and crash should not be a power problem, or the computer system is faulty and the operating system completely fails and loses the ability of human intervention. Or it was deliberate suicide. This can be diagnosed after the fact using the black box.
Plane in crash without fire
