MONESSEN, Pa. -- Answers are being sought as to why Charles Edward Koschalk was allowed to maintain contact with 8-year-old Annette Bright after being convicted of a crime involving her 12-year-old sister.

Mayor Ted Harhai said that after a criminal investigation into Bright's death -- which happened Sunday, allegedly at Koschalk's hands -- a review may be conducted to determine why the suspect was not behind bars or prevented from contacting the Brights.

"Whatever error may have occurred, we need to look at it," Harhai told WTAE Action News on Friday. "We also need to look at the family unit, and where that may or may not have failed."

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Meanwhile, Bright was buried Saturday in Monessen. It was an emotional day for people in the community.

The church pastor talked about making sure that this kind of event doesn't happen again and about the community's responsibility to keep all children safe.

Koschalk, 34, was convicted of corruption of a minor last year. He served nine months in prison for keeping 12-year-old Marcia Bright in his truck overnight without her parents' permission, and he was on parole when Annette Bright was killed.

Harhai wants to know whether more should have been done to keep Koschalk away from the girls.

"Maybe the system, the way it's set up, didn't allow them (the law enforcement and social service agencies) to do it well enough," Harhai said.

He also wondered why Koschalk wasn't arrested after a parole officer saw him alone with Marcia Bright.

Court papers show that Koschalk was seen with the girl in May at a Target store in Greensburg. A motion to revoke his parole was filed June 27, and a hearing to determine whether that would indeed happen was scheduled for August.

Monessen police Chief Gary Tretter would not comment on the situation Friday.

"I'm not saying anybody should be held accountable except Charles Koschalk," Tretter said. "He killed that girl. I'm not answering for the mayor."

Westmoreland County Chief Commissioner Tom Balya defended the work of the county Children's Bureau.

"Unless we see some glaring example that someone upstairs dropped the ball, we feel confident that they did what they were supposed to," Balya said.

Pennsylvania Department of Public Welfare workers said they are reviewing the case, which they must do whenever a child dies, but confidentiality rules prevent them from publicly discussing what they find.

Neighbors and relatives told WTAE Action News that they often saw Koschalk with Marcia Bright at the family's home after his corruption conviction, and they believed that the two maintained a romantic relationship. Koschalk reportedly bought the girl a beeper so they could keep in contact, and bought gifts for the family.

The Brights have refused to comment on what, if any, relationship Koschalk had with them.

"I'm not pointing any fingers, but we want to know why this got to the point where an 8-year-old's life was taken," Harhai said. "This shouldn't have happened."