Pennsylvania Society for the Prevention of Cruelty to Animals (PSPCA) Officer Elizabeth Anderson filed the charges against Brennan on Thursday.
The tragic story occurred in November 2012 when veterinarian staff reported a dog named Romana was brought into the animal hospital with a .38 caliber gun shot wound to her head. The dog acted "bright and alert."
Brennan, 47, ordered the dog to be euthanized.
Officer Anderson stated the dog died a "horrible death."
There was no reason given for the dog being shot in the head.
If found guilty, Brennan faces the maximum of two years in jail and a $1,000 fine.
Rest in peace Ramana.
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