Olney ‘mystery house’ case: Timeline of investigation as mysterious deaths, ‘graphic’ videos shock police
An Olney house has become the focus of an investigation after “graphic” videos revealed that two missing women died there. Many other shocking items were found.
Four missing women have been linked to the house of Eugene Horsch in Olney, Philadelphia, Pennsylvania. This has brought back memories of another notorious serial killer, Gary Heidnik, who operated in the area decades ago. Police believe two of these four missing women, Maribel Fresses and Gabrielle Amarando, are no longer alive.
Fresses was last seen in 2018 and Amarando went missing in 2012. Horsch, 44, was arrested and indicted for possessing loaded guns despite a prior conviction in Pennsylvania and fraudulent DEA and FBI identification documents. The Olney house came under scrutiny when police searched the property after arresting Horsch. Evidence from a hard drive in the home led investigators to believe Fresses and Amarando were dead.
Another two women, Blair Tonzelli and Amy McHale, are also missing. Tonzelli disappeared in 2023 and McHale, who was married to Horsch's father, Ray R.C. Horsch, who died in 2025, went missing in 2016. While Horsch has not been charged with killing any of the missing women, the discovery of disturbing evidence, including writings about serial killer Ted Bundy, has led to speculation about him being a serial killer.
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