Ervin lived next door to Shannon's stepmother where he mowed the yard, shoveled snow and did odd jobs.
"Who would think that somebody that's 50-some years old would be such a monster," Kleeman said.
Family members, neighbors and even Ervin's own wife discovered Shannon's partially clad body on the afternoon of March 28 in the basement of the home in the 600 block of Linwood Avenue.
The brutality of the crime scene shocked even veteran homicide detectives. Police said Shannon was house sitting at the residence while her disabled mother was hospitalized.
Police said Ervin went to the home the night before, assaulted the young woman, then shot her multiple times with a shotgun and then went back home. Ervin allegedly told police that he was home all night with his wife.
"He had to rape and shoot my daughter and carry his (expletive) home next door and crawl in bed next to his wife for a (expletive) alibi. I'm sorry," Kleeman said.
Ervin was being held without bond at the Marion County Jail. He is scheduled to appear in court early next week.