A retired New York Police Department detective involved in the investigation of UnitedHealthcare CEO Brian Thompson's murder has described the silencer recovered in the case as unlike any device he had encountered during his 25-year career in law enforcement.

The detective's comments refer to evidence collected in connection with the December killing of Thompson, who was shot outside a Manhattan hotel. The case has drawn significant attention due to the circumstances surrounding the executive's death.

According to the detective, the silencer appeared to be homemade, distinguishing it from commercially manufactured suppressors typically encountered in criminal investigations. The unusual nature of the device has become a notable aspect of the ongoing investigation.

The Thompson case remains active as investigators continue to examine physical evidence and pursue leads. The UnitedHealthcare CEO was killed in what authorities have characterized as a targeted attack in midtown Manhattan.