Washington Police arrested a 22-year-old man over the weekend for allegedly abusing his girlfriend's three-year-old-son.

Authorities say the toddler suffered serious injuries at the hands of the man who was alone at home with the child two weeks ago.

Authorities say 22-year old Timothy Johnston kicked the toddler in the genitals and slapped him in the face on March 28. Washington police arrested Johnston Friday on felony child battery.

Pam Bowers says her son has a daughter with Amber Dickey, the mother of the child who was abused. She says Johnston has a problem with managing his anger.

Bowers says this is not the first time Johnston has blown up.

"He's kicked in the front door. He's kicked in the ceiling of their kitchen. They don't have hot water. There's been a lot of problems at the house. We have turned them in to DCFS, but DCFS says unless there's animal feces all over the house there's nothing they can do."

Washington Police Sergeant Jeff Stevens says they were notified of the case by the Department of Children and family services.

News 25 talked to DCFS spokesman Jimmie Whitelow who says they are conducting an investigation of an abuse allegation, but prior to this there was no prior contact with the family.

Johnston is in jail on $100,000 bail. He is scheduled for a preliminary hearing April 24.

Police say the three-year-old is out of the hospital and is back home with his mother Amber Dickey.

News 25 tried to contact the mother, but she did not return our calls.

Washington's Police Chief says it's among the worst cases of child abuse he's every seen. Police say Johnston initially claimed the boy fell down the stairs of his home at 109 South Wood Street.

The toddler had injuries to his stomach, face and genital area.

Investigators determined the injuries were not consistent with Johnston's story.

Police say the 3–year old told investigators he was kicked and slapped in the face by Johnston.