Casper Police Arrest Suspect in Fatal Wrong-Way Crash on CY Avenue

Casper police have arrested a 34-year-old woman following a month-long investigation into the fatal wrong-way crash that occurred on CY Avenue on November 7, 2025.

Officers took Carrissa Westphal, of Casper, into custody on the morning of December 11 on recommended charges of Homicide by Vehicle, Driving Under the Influence, and Reckless Endangering. The arrest follows an affidavit of probable cause submitted by investigators on December 8 and a subsequent arrest warrant issued by the Natrona County District Attorney’s Office.

According to investigators, the crash happened shortly after 9 p.m. when a sedan traveling eastbound in the westbound lane of CY Avenue struck an oncoming SUV head-on. Westphal, identified as the d

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