Investigators say the person in the sketch is described as a white male between 5' 6 and 5' 10, weighing 180 to 220 pounds with reddish brown hair.
"We ask that you focus on the person's facial features", Riley said in the release.
According to our sister station WTHR, Indiana State police will be giving an update on their current investigation. Anyone with information about the murders or person in the composite sketch is asked to call the anonymous tip line at 844-459-5786.
A reward of more than $230,000 is offered for information that leads to the arrest and conviction of anyone responsible.
The teens vanished February 13 while hiking and were found dead the next day.
This photo released by the Indiana State Police shows a man Indiana authorities want to talk to the man in connection with the killings of two teenage girls.
Agencies working on the case released two grainy photos showing a man they consider to be the main suspect; there was also an audio recording of the male saying "down the hill" into his cellphone.
State police say they will release new evidence on the main suspect in the killing of two northern in girls in February.
Search volunteers found the girls' bodies near the Delphi Historic Trail the next day.
"We've got the information out there, the pictures out there, now we've got this composite that we feel it is the same person and we just want to make sure that people realize this picture is this person", Riley said.
State police have released an artist's composite sketch of a man considered the main suspect in the killings of two northern in girls.