Maurice Brown was killed by a pit bull Tuesday while walking in Dayton. Police say the dog broke away from a chain and attacked the 60-year-old man while he screamed for help.
The dog was later shot and killed by police.
Brown's brother, David Brown, told the Dayton Daily News he thinks pit bulls are bred to be vicious and that he doesn't believe his brother would have done anything to provoke the animal.
While any dog can become vicious if mistreated, smaller dogs can't kill people, David Brown said.
"People seem to want to try to make a lion into a kitty cat, and they are not that," he said.
Some advocates agree. Colleen Lynn, who founded a website (dogsbite.org) that pushes to sterilize pit bulls at an early age, said pit bulls are more aggressive than other breeds and are more capable of severely injuring people.
"We have herding dogs, we have pointing dogs, we have fighting dogs," Lynn said. "Genetics do play a role."
However, the Humane Society of Greater Dayton's Jessica Garringer insists that the entire breed shouldn't be judged by the actions of one dog.
"We have many staff members who have pit bulls, and they are just the sweetest and most loving dogs in the world," Garringer claims.
According to police, the property is owned by a nursing home. The dog's owner could face criminal charges for the fatal attack, police said.