ACCUSED comic book killer Michael George and his wife Barbara were constantly at each other's throats, a witness told his murder trial in Detroit. Michael George , 51, is charged with the July 13, 1990 murder of Barbara, found dead inside their comic book shop.Kim Koliba--who didn't actually know the couple personally--says she overheard at least 30 of the pair's arguments in the summer of 1990. Koliba worked at a nail salon in a strip mall near the comic store owned by the Georges, testified about a July 13, 1990, spat over money between the pair with a tone more disturbing than the
