DELPHI, Ind. – Indiana State Police are to make an announcement about the investigation into the 2017 killings of two teenage girls found dead on a hiking trail.

State police say Superintendent Doug Carter will discuss how the investigation has gone in a “new direction” during a midday Monday news conference in Delphi.

The bodies of 14-year-old Liberty German and 13-year-old Abigail Williams were found in February 2017 on a hiking trail near Delphi, about 60 miles (95 kilometers) northwest of Indianapolis. The slayings remain unsolved.

Investigators on a multi-agency task force have gone through thousands of leads looking for a man who forced the teens off the trail, ordering them to go “down the hill.” Police also have released a composite sketch from eyewitnesses who believe they saw the man in Delphi.