From our news partner TV 9:
EAST DUBUQUE, Illinois - The East Dubuque man accused of murdering his stepdaughter pleaded guilty Thursday.
Terry Abbas had been charged with killing his stepdaughter, 14-year-old Chyenne Kircher. Abbas also faced sexual abuse charges and a charge of concealing a homicidal death. Prosecutors had been been seeking a life-sentence for the charges.
Abbas was arrested last month.
Chyenne disappeared in October 2011, and her case was originally treated as a missing persons case. At the time, officials said Chyenne had left a note indicating she was running away from home.
The case was re-evaluated in March at the request of East Dubuque Police Chief Steve O'Connell. Chyenne's body was found behind her family home in September.
Law enforcement said that Abbas was arrested last as part of their investigation into Chyenne's disappearance. Abbas was under investigation by a Critical Incident Response Team from the state of Illinois. The C.I.R.T. began their investigation in March.