UPDATE, 12:54 a.m. ET Aug. 9: The man suspected of shooting and killing a Missouri police officer late Sunday reportedly has been arrested following a two-day manhunt.

According to The Associated Press, Ian McCarthy, 39, of Clinton, was arrested Tuesday and charged with first-degree murder in the fatal shooting of Clinton police officer Gary Michael, 37.

McCarthy was apprehended after a driver reported a pedestrian on a Henry County highway, NBC News reported.

ORIGINAL STORY: There is a massive manhunt in Missouri for the man charged with killing a police officer.

>> Watch the news report here

The suspect, 39-year-old Ian McCarthy, reportedly has ties to New England and is wanted in Manchester, New Hampshire, on a previous assault charge.

McCarthy reportedly has been on the run from Missouri State Police since Sunday night. Authorities say the 39-year-old shot and killed Clinton, Missouri, police officer Gary Michael.

On Sunday night, Michael pulled McCarthy over for a suspected registration violation in Clinton, police said. Authorities said McCarthy fired at Michael, and Michael fired back. McCarthy reportedly then took off, crashed his car and ran on foot. Michael was taken to the hospital, where he died.

New Hampshire state court records show McCarthy faced at least 20 counts from 1997-2011. The charges vary from traffic violations to possession of a dangerous weapon and first-degree assault.

If you see McCarthy or have any idea where he may be, call 911.

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Demonstrators protest President Donald Trump and Elon Musk on Presidents Day in front of the Capitol in Atlanta on Monday, February 17, 2025, as part of nationwide demonstrations organized by the 50501 movement. (Arvin Temkar / AJC)

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