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Case Description

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On April 3, 1995, Derek Harrison, a 35-year-old man from Corpus Christi, Texas, tragically lost his life in a mass shooting at the Walter Rossler Co., a refinery inspection firm. The incident occurred when James Simpson, a former employee of the company, walked into the office and methodically shot five people, including Harrison, before taking his own life. The other victims were Walter Rossler , his wife Joann Rossler , Wendy Gilmore , and Richard Tomlinson .

The motive behind the shoo ...Read More

Victim Details

Derek Harrison

Male

White / Caucasian

Corpus-christi

TX

1995-04-03

35

Derek

Harrison

04/27/2026