Indiana police are planning an update on their investigation into the 2017 slayings of two teenage girls killed during a hiking trip .
Fourteen-year-old Liberty German and 13-year-old Abigail Williams vanished on Feb. 13, 2017, while hiking near their hometown of Delphi, about 60 miles northwest of Indianapolis.
Their bodies were found the next day in a rugged, wooded area.
Wednesday's media briefing by State Police, Carroll County authorities and others on the unsolved killings will be held in Delphi.
Investigators have released an FBI artist's composite sketch of the suspect, a white man with a prominent nose and a goatee. Two grainy photos of the suspect and an audio recording of a man saying "down the hill" has also been released -- evidence that came from German's cellphone.
Police plan update in probe of 2 teenagers slain in 2017