Tammi Jean Campbell was a 33-year-old single mother who vanished from Grove City, Ohio, on June 12, 1999. She had moved to Ohio in 1998 to escape an abusive relationship with her ex-boyfriend, Gary Lee Robinson, who followed her and was staying with her in May 1999. On the night she was last seen she dropped her 12-year-old son at a friend’s house, planned to visit another friend and then work at CVS the next day, but never showed up for work or returned for her son.

When a friend went to Tammi’s apartment a few days later, Robinson was there and said Tammi was out using drugs. Tammi’s purse, keys, identification and her car were left behind. Some of her jewelry, including a necklace her son said she never took off, was later found buried at Robinson’s parents’ property. Neighbors reported hearing a loud thumping from the apartment the night she disappeared.

A search of a landfill failed to recover her remains. A jury later convicted Robinson of murder and tampering with evidence and he received a 20 years to life sentence. Tammi had been declared dead by the Social Security Administration in 2008.