The suspect has been described as 5-foot-6 to 5-foot-10, weighing between 180-220 pounds with reddish brown hair.
Monday, they released a composite sketch of the suspect and again asked the public's help in identifying the man.
Sgt. Kim Riley says the sketch that will be released Monday was created by an artist from information collected by all the agencies, including the FBI, involved in the double-murder investigation.
Liberty German, 14, and Abigail Williams, 13, were found slain on February 14, a day after the two were reported missing after hiking on trails near Delphi, located about 60 miles northwest of Indianapolis.
Investigators hope that this, alongside the sketch, will allow for more aid from the community.
State police say they will release a composite sketch of a man considered the main suspect in the killings of two northern in girls. "The investigation continues", says Captain Dave Bursten with the Indiana State Police.
According to police, there are no arrests at this time, and Riley could not comment as to whether they are close to making an arrest.
Abigail "Abby" Williams, left, and Liberty "Libby" German.
If you recognize the man in the sketch, you are urged to call the tip line at 844-459-5786.
"This young lady is a hero", Indiana State Police Sergeant Tony Slocum said at a press conference. Their bodies were found about 12:15 p.m. a day later. Police released a photo of the suspect and an audio clip of the suspect saying, "down the hill" that were taken by the cell phone of one of the two girls murdered.
A $230,000 reward is being offered by authorities for information into the murders.