The section of the Massei report you posted said
"The next fact to considered is that the pieces of glass from the broken pane were distributed in a homogeneous manner on the inside and outside parts of the windowsill, without any displacement being noted or any piece of glass being found on the ground underneath the window. This circumstance, as confirmed also by the consultant Pasquali, tends to exclude the possibility that the rock was thrown from outside the house to create an access to the house through the window after the breaking of the pane. The climber, in leaning his hands and then his feet or knees on the windowsill, would have caused at least some piece of glass to fall, or at least would have been obliged to shift some pieces of glass in order to avoid being wounded by them. Instead, no piece of glass was found under the window, and no sign of any wound was seen on the pieces of glass found in Romanelli's room."
This building block of their conclusion did not have any reference like other parts of the document do like "..."grass attached to the shoes" (p. 145, cf. also declarations of the assistant Zugarini, hearing of Feb. 28, 2009, p. 133)."