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A 15-year-old boy from Henrico County has been charged with first-degree murder and animal cruelty, among other charges, after a Richmond man was found shot to death, and his dog injured.

Arthur Robinson III, 33, was found Friday around 11 p.m. dead inside his home in the 5000 block of Old Warwick Road.

The U.S. Marshals Regional Fugitive Task Force and First Precinct patrol officers arrested the teenager Sunday without incident. He was charged with first-degree murder, robbery, breaking and entering with the intent to commit robbery, maiming or killing a companion animal, animal cruelty and three counts gun charges. Police said they wouldn’t identify the teen unless he was charged as an adult.

Detectives believe two other masked people were involved, but have not yet identified them.

Police said Robinson’s pit bull chased the three people as they ran from the home. One of the people then shot the dog in the chest, police said.

The pit bull is recovering from its injuries and is expected to survive.

Anyone with information about this homicide is asked to call Major Crimes Detective M. Young at (804) 646-3926 or contact Crime Stoppers at (804) 780-1000 or at www.7801000.com. The P3 Tips Crime Stoppers app for smartphones may also be used. All Crime Stoppers methods are anonymous.