O’Fallon Police Department Sergeant Jodi Weber, the detective who solved the so-called “Package Killer” serial murder cold case, is reaching out to the public with new information and a request for the public’s assistance. Weber’s years of investigative work came to fruition last month when prosecuting attorneys in three jurisdictions announced homicide charges against Gary Muehlberg, 73, for four murders he allegedly committed in 1990 and 1991. Muehlberg left the victim’s bodies in various containers — between two mattresses, in a plastic garbage can, in a metal barrel — leading him to be dubbed the Package Killer.