SALEM, Ore. -- A Salem man accused of killing the 2-year-old daughter of his companion faced child abuse allegations in another county a year earlier, resulting in a conviction and orders that he get parenting and anger management counseling.

Police photo

Russel Ros

Russell Ros, 22, faced child-abuse allegations by Beaverton police involving a toddler boy in March 2007 -- one year before being charged in the death of the boy's sister, the Salem Statesman Journal reported.

Ros was arrested Sunday on murder and sex-abuse charges after 2-year-old Natalia Lee died at Salem Hospital. An autopsy determined she died of blunt-force trauma and suffered recent sexual abuse, a probable cause statement filed by Salem Police Detective Kris Knox said.

Ros was caring for Natalia and her 3-year-old brother because their mother, Amanda Ingram, 18, was out of state, Knox's statement said.

In 2007, Ros was charged with criminal mistreatment and assault. In a plea agreement, he was convicted of fourth-degree misdemeanor assault and sentenced to probation, said Paul Maloney, Washington County deputy district attorney said.

 More: Family says Ros has anger issues

The judge ordered Ros to take parenting classes, complete anger management treatment and not have contact with the boy or his mother without written permission from a probation officer.

Ros' arrest Sunday sparked an internal department review of how his probation was handled by Marion County Sheriff's Office, which took over Ros' case in June 2007, Sheriff Russ Isham said.

The case also prompted the director of the Oregon Department of Human Services to order an internal investigation. Natalia Lee was not in state foster care but the family was known to the agency because of past reports of suspected abuse. The investigation will determine if the agency made a mistake or needs to change its practices.