Hellmann's description of how Rudi got the blood on his foot didn't make sense IIRC.
The calunnia charge didn't make sense either, especially since innocent of the other charges.
Here's Hellmann on the print -It cannot therefore be ruled out that Guede, after leaving the print of photo 104 on the pillow (ruling p. 359) and, perhaps, that of photo 105 (ruling pp. 366-367), experienced the loss of his right shoe in the course of the violent aggressive maneuvers to which he subjected Kercher, thus resulting in the soiling of his foot with blood, which he took it upon himself to wash in the small bathroom situated immediately to the left of the door to Meredith’s bedroom. Otherwise, his right shoe should also have left some kind of bloody trace along the corridor as he exited; he likely went through it,
however, with his right food bare, even if cleaned of blood by this point.
ETA - I never thought the print was worth anything as at best it could be seen as compatible with someone. I think the discredited grid technique shouldn't have been used and it did look more like Rudi's than Raf's. My problem was with how Hellamnn had Rudi getting the blood on his foot. I think it much more likely that Rudi was washing off his pants and bloody water in the bidet was transferred to the mat. I think Rudi walked straight out of the house from Meredith's room and then turned around when he realized how he looked with blood on his pants.
Aside to Ac - yeah they will be on time and under budget just like ST. Did you ever see the aftermath of the TBM in Köln?