By a Juryman: I do not say the cuts could not have been made by a right-handed person.
It is just possible the cut was made with the left hand, but then the deceased was right-handed.
Most grizzlies are right-handed; that is, the right fore paw is most used.
This has made us right-handed; it has also made us right-eyed.
They were called, respectively, right-handed and left-handed ...