Carl Schliff is one of the psychopaths that appears in the Dead Rising 2 and Dead Rising 2: Off the Record.
Dead Rising 2
In Dead Rising 2, Chuck Greene sees a Carl walking and delivering a package in the Royal Flush Plaza, only that the package requires a signature. Soon after, Chuck tries to talk to him about the zombies but can not talk to him, Chuck sees that Carl has a Zombrex, and seeing that Carl is willing to deliver the Zombrex in exchange, Chuck then accepts to help Katey. But nevertheless, Carl recognizes Chuck and gives a bomb pack, the pack explodes more Chuck survives, Carl then enraged with Chuck by ruining his record perfect. After, Carl picks up shotgun and says he'll make Chuck pay for it and after the two fight in the shopping. After many explosions and shots, Chuck manages defeat Carl.
Dead Rising 2: Off the Record
In this game, it is very similar to Dead Rising 2, he asks for a signature, Frank sees the Zombrex that he can use for the treatment and signs, Carl notes that he committed fraud and hit a mail bomb, just like Chuck, Frank and Carl begins the fight more unfortunately Frank manages to defeat him.