Indiana State Police confirm that new information will be released today regarding the deaths of Abby Williams and Libby German.
Police have not had any luck making an arrest.
The Carroll County Sheriff's Department, FBI, Delphi Police Department and the Indiana State Police believe the man depicted in the composite sketch is connected to the murders.
Libby, 14, and Abby, 13, were found slain near a hiking trail on February 14.
The only evidence to this point was a fuzzy picture of the suspect and voice from a cell phone call.
From that, they issued the grainy photo of someone who seems like a white man in blue jeans, a blue coat and a hoodie. The words "down the hill" are heard. Police said the girls' bodies were about three-quarters of a mile from an abandoned railroad bridge where they were dropped off a day before to go hiking. Police say it's very important for the public to focus on the facial features.
The man in the sketch is described as between 5 feet 6 inches tall and 5 feet 10 inches tall and weighing between 180 and 220 pounds.
Investigators released this photo of a man seen on the Delphi Historic Trails in Delphi, Indiana on Monday, Feb. 13, 2017, the same day two girls were killed.
Police say the composite sketch is the result of tips they've received during their investigation.
A reward in excess of $230,000 has been offered for information that leads to the arrest and conviction of the person or persons responsible for these murders.