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Kerry Maylin, prosecuting, said: "The defendant claims he was worried about Andrew Young because he thought he was being menacing. He said Andrew Young put his hand to his pocket and he thought he was going to pull out a knife or a gun."
A postmortem examination found that Young had no injuries to indicate that he had tried to defend himself.
(The Guardian; Man jailed for killing pedestrian with punch)
Would you be so kind as to explain to me how injuries (or rather, what kind of injuries) can be an indication of whether one has tried to defend oneself?
A medical examiner or a coroner would know how to detect injuries that are consistent with a person trying to defend himself. Apparently, Young had no such injuries.
For example, he might have a knife wound on the palm of his hand or on the back of his elbow. These would not likely be self-inflicted wounds. They would be wounds consistent with someone defending himself.