According to the Fort Bend County Constable Precinct 3's Office, 32-year-old Timothy Holloway was arrested on Tuesday after a warrant was issued.
The dog, lovingly named Clarence, was found in a small wire kennel with two gunshot wounds to his face at Harlem Park on Harlem Road in December 2019.
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"It took 6 months of hard work and investigation but today brings closure to this case," read a post published on the constable's office Facebook page.
Holloway is charged with third-degree felony cruelty to non-livestock animals.
According to investigators, Clarence still suffers from sinus infections and other medical issues, but he is being trained as a therapy dog.
"It is reported he is quite a good student," read the Facebook post.