Investigators aren't sure where Jessica Heeringa's body is despite searching more than a dozen locations over the last decade, and serial killer Jeffrey Willis claims he doesn't know either.
Mike Kasher was told the Norton Shores Police Department was too small to solve the case. People said he was a failure. In the end, police got a murder conviction, but Jessica Heeringa is still missing.
Jeffrey Willis is serving life without parole after killing a woman who was jogging in 2014 and kidnapping and killing a gas station clerk. The van was used in both instances.