Against overruled objections from Linton Thorp, Dr. Simpson then retrieved Wolfe's skull from a cardboard box to demonstrate for the jury just how this knife fitted the wounds discovered in Wolfe's skull, and how the channel tracts to the right of each wound again matched the dimensions of Exhibit 4. Simpson also explained to the jury how the positioning of these wounds indicated she had likely been facing her right-handed attacker when these wounds were delivered. Although both Simpson and Gardner conceded the knife introduced as Exhibit 4 may not have been the actual murder weapon as opposed to another, precise replica issue, both pathologists dismissed the possibility that any standard-issue American or Canadian Army knife presented before them could have created these distinctive, countersink wounds. (No other soldier stationed at Witley Camp had been in possession of such a weapon.)