Also at IIP there now appears conflicting information about the 21:58 and 22:00 phone activity.
charlie_wilkes says he exhaustively analyzed the issue years ago and the records show the phones were certainly near Rudy's house at that time, and almost certainly not in the cottage.
Dan O says anyone who thinks the phone were still in the cottage at 21:58 is "stupid."
In lieu of a definitive answer on this issue I must side with them, as Rudy being at a murder scene for 40 minutes longer than any reasonable criminal could ever think to be there strikes me as improbable, and I have had a very difficult time putting together a series of events that ends with Rudy still at the cottage at 21:58, and nobody else here has even attempted it.
The problem is this: since neither of these failed calls generated a billing record, and since billing records were the only think the
Keystone Perugia Cops bothered to obtain, neither of these calls showed up on the billing record.
But..... both of these calls would have shown up on the operator's network management records. In both instances, it's clear that an outgoing call attempt was indeed made (presumably both these numbers were within the handset's "called numbers" list, next to the time of each call).
So from a (simplified) technical perspective, what would have happened is along these lines: the handset would have initiated an outgoing call to the network; during that outgoing call handshake protocol, the handset would have transmitted the required phone number to the network; the network would have interrogated the number, and would have determined near-instantaneously that the number was not in a recognisable format; the network would have therefore determined that it would be impossible to connect the call; the network would then automatically have terminated the call.
And all of this would have had to have taken place via an identifiable base station - it was a genuine (if very short and abortive) "conversation" between the phone and the network, via a particular base station.
So from a "billing records" perspective, it's impossible even to see these calls, let alone determine which base station they came via. I don't actually know whether anyone delved deeper into the network management records to try to determine which base station was used. If not, then I would concluded that we (courts/prosecutors/defence included) must all be wholly in the dark as to the location of the phone when these failed calls were made.
For some reason, I always thought it had been reasonably demonstrated that the phone was (or likely was) within the cottage at the time these calls were placed. But as I said, if nobody has/had access to anything more than the billing records, then it would have been impossible to know anything about the phone's location at this time.
And if that's the case, then it's certainly reasonable to suggest that the phones might already have been either en route to Guede's apartment or maybe even within Guede's apartment, at the time of these two calls around 10pm. One can reasonably construct a scenario where Guede left the cottage shortly after 9.30pm (having confronted and killed Kercher by 9.20pm, then having briefly paused to clean most visible blood from himself and figure out how to get out), then got back to his apartment and examined the two phones. He could easily work out how to turn off the Italian phone, since all the menu commands were in Italian, but he couldn't figure out how to do the same to the UK phone - and this prompted the clumsy pressing of buttons which resulted in the random failed calls at 10pm. And he might then have decided that the phones were just too hot to hang onto (and he would probably have come to the conclusion that trying to sell these phones carried far, far more risk to him than any small monetary gain he might make). So he ventured out again to dispose of the phones into the ravine outside the city walls. On the way, the incoming MMS arrived at 10.13pm. And then Guede threw the phones out into the darkness of the ravine - not realising that in fact he'd thrown them into Lana's garden.