He was very persistent. [Between the two of them, they could probably revolutionize the packing industry for spare bodyparts.]
It got worse from there. The UnSub took contact with our tech expert through her personal computer, and he managed to hack into it, which opened up the possibility that he now had access to the entire FBI database. She managed to trace the hackers accont but when we got there we realized that it was just another clue left by the UnSub - he was dead when we arrived. Impaled on his bed with a medieval sword. The UnSub had also left two messages for us, which eventually led to a DVD recording where he gave us our... quest. He also told us that there was only one rule: we weren't allowed any outside help. No press conferences, nothing, the members of the BAU were the only ones allowed to participate.
We broke that rule. Gideon arranged a press conference. Later that night, the UnSub entered the home of one of our Agents. Elle. He shot her and left a message for us in her blood: Rules.