Michael Rosenberg, 30, was charged with six counts of animal cruelty for the incident back in August.
Police say Rosenberg advertised himself as a dog trainer and operated out of his home.
In this case, police say a female shepherd mix suffered internal injuries and died just days after the owner left the dog in Rosenberg's care.
Investigators allege the dog suffered broken ribs from being slammed into the ground.
Rosenberg is now awaiting a court date.