First, it was not murder, but a series of coincidences led to an accident similar to murder.
Second, this is murder, but the victim was forced to commit suicide or went into a death trap.
Third, this is murder, and the method is through the device installed in the room, which is difficult to detect and may be hidden in a seemingly harmless place on the head of the furniture.
Fourth, this is murder, just disguised as suicide, just deliberately arranged as murder.
This is murder, but the mystery is caused by illusion and disguise.
6. This is murder. Although the murderer committed the crime outside the room, it looks like he committed the crime inside the room.
Seven, this is murder, but its trick operation method, just runs counter to the fifth item. In other words, the victim is considered dead. Time, much less than the real crime time.
Five tips for locking the door:
First, move the key inserted into the keyhole.
Second, the hinge of the door can be easily removed without destroying the lock and door bolt.
Third, tamper with the door latch.
Fourth, tamper with the sliding bolt.
Fifth, creating illusion is simple but effective.