Elizabeth Sullivan, a 32-year-old mother of two, was killed by her husband, Matthew Sullivan, who was a former Navy serviceman. Elizabeth was last seen alive on October 13, 2014, in San Diego. Nearly two years later, on October 4, 2016, her decomposed body was found floating in the San Diego Bay. An autopsy revealed she had been beaten and stabbed to death, and evidence later showed she had been kept in a freezer for two years before being dumped into the bay.
Matthew Sullivan was arrested in 2018 after investigators found blood evidence in their home and a knife hidden in the attic, which was determined to be the murder weapon. Matthew was eventually convicted of second-degree murder in 2020 and sentenced to 16 years to life in prison. The case gained attention due to the domestic abuse claims, Elizabeth's efforts to seek a divorce, and the dramatic nature of her body being hidden for years before discovery [The Cinemaholic](https://thecinemaholic.com/elizabeth-sullivans-murder-how-did-she-die-who-killed-her/).
