Iliana (Lily) M. Peters killer and The Unsolved Murder of JonBenet Ramsey

Prosecutors said Wednesday that the 14-year-old suspect in the death of 10-year-old Iliana "Lily" Peters told investigators he punched, strangled and sexually assaulted her, according to CBS Minnesota. Peters was found dead in Wisconsin on Monday after her family had reported her missing the day before.

Prosecutors said the boy admitted that he'd been planning to rape and kill Peters "from the get-go" on Sunday night, when he began following her down a trail after she left her aunt's home, CBS Minnesota said.

"Protection of (the) community also is necessary in this case given his statements regarding his intentions and his statements regarding that when he did get off the trail, he punched the victim in the stomach, knocked her to the ground, essentially strangled her, hit her with a stick, before strangling her to the point of death — before he then sexually assaulted her," Chippewa County District Attorney Wade Newell told the judge at the bond hearing, according to the Associated Press.

Iliana “Lily” M. Peters' father reported her missing after she did not return home from her aunt's house, Chippewa Falls Police Chief Matthew Kelm said during a news conference.

Peters' bike was found a few blocks away from her aunt's house, and on Monday morning, her body was discovered in a wooded area. Chippewa Falls Police are investigating her death as a homicide and said there may be a danger to the public.

Chippewa Falls Area Unified School District said it was working with police.