Ex-informer, new vampire and finder of defectors
Serge was part of "John"’s network, a Serbian who worked the embassy circuit, looking for possible defectors for the good old U.S.A.
Network 2 (now all used up)
He put his friend “Sam” and his allies in a safe house but neglected to turn off all the recordings. Then the mafia found them and blew his cover.
They tortured him, killed him, and made him one of the undead. He continued to dislike John but was eventually blown up for good.