Sgt. Kim Riley says a news release will be issued Monday morning providing "very important" information that "will give people a clearer image of who we are looking for" in the unsolved double-murder case.
The suspect - who is wanted for the deaths of Abigail Joyce Williams, 13, and Liberty Rose Lynn German, 14, whose bodies were found on February 14 in a wooded area near the Delphi Historic Trail in Carroll County - was described by state police as about 5-foot-8 and between 180 to 220 pounds, with reddish brown hair.
WISH-TV in Indianapolis reports that the sketch was made up from tips that police have collected over time, as well as a photo that was found on the phone of one of the victims. Their bodies were found the next day in a wooded area. He's depicted with reddish brown hair and unknown eye color. They also released audio of a male saying 'down the hill'.
Investigators released two grainy images in late February of a man they consider the main suspect in the killings.
Riley said investigators believe the man captured in the photos and in the new artist's sketch killed both girls.
Monday, they released a composite sketch of the suspect and again asked the public's help in identifying the man.
Anyone with information about the slayings or the person in the sketch is asked to call toll-free to 844-459-5786.
A reward over $230,000 is available for information leading to an arrest.