Keadle and McCarty went to Loudermilk's 26th Street home in North Charleston to investigate and found a 1979 yellow Ford single-cab truck.
Loudermilk told deputies he had driven the truck to Boone County on Oct. 14 to pick up a friend's all-terrain vehicle.
"I had the pup in the back (bed of the truck). It must've jumped out," Loudermilk told the deputies when asked about the puppy.
He said two others were in the truck with him, including Scotty Thompson, who also was indicted on a cruelty charge in April.
Keadle and McCarty wrote in the complaint that Loudermilk's statements conflicted with what they witnessed.
The deputies saw no dog jumping or moving around in the back of the truck, according to the complaint.
The puppy was tossed from the right passenger window from a height above the end railing of the pickup's bed. Its back was parallel to the road "as if someone had been cradling the puppy inside the cab of the truck" when it was thrown, the complaint said.
A Boone grand jury heard the investigators' findings when it convened in April and issued indictments for Loudermilk and Thompson. Arrest warrants were issued for both.
Information on Wednesday's arrest in Charleston was limited as the complaint could not easily be located at Kanawha Magistrate Court.
Loudermilk is being held on $35,000 bond in South Central Regional Jail.
Contact writer Ashley B. Craig at ashley.cr...@dailymail.com or 304-348-4850.
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