(KAIR)--The preliminary autopsy report is released as part of the ongoing investigation into an officer-involved shooting in Saint Joseph, Missouri.

The findings come in a press release issued by Buchanan County Prosecutor Dwight Scoggins, who confirms his office is "working closely with the Missouri State Highway Patrol" on the investigation.

27-year-old Saint Joseph resident Jason Fanning died after he was shot by an officer when police responded to a report of a suspicious vehicle near the intersection of 20th and Charles Streets shortly after 2:30 Monday morning.

While the exact time of the fatal shooting, and specifically what led up to it, has not been made public, the press release from Scoggins states that preliminary autopsy results reveal that Fanning "was killed by a single, penetrating gunshot wound."

Scoggins says "a lot of additional work is yet to be done,” with the investigation continuing.

As part of the probe, Scoggins met for around two hours Wednesday "to review preliminary information with investigators and discuss additional steps that need to be taken" as part of the ongoing investigation.

The officer that pulled the trigger has been placed on administrative leave.