DELPHI, Ind. (WLFI) — Monday marked two weeks since new information was released in the Delphi double homicide investigation, and State Police spoke to News 18 about the changes.

While Sgt. Kim Riley wouldn't give any more details on why police changed the sketch, he said it makes investigators feel closer to catching the killer.

"We just feel this is a more accurate account of what we believe is the possible murder suspect in this Abby and Libby case," said Riley.

However, he said police have received a lot of new information on people who live in the area since releasing the sketch. That's important, because investigators believe the killer has close ties to Delphi.

Indiana State Police have released a new video, sketch and audio of who they believe killed Abigail Williams and Liberty German in Delphi on Feb. 13, 2017. Read all the new information released here: https://t.co/WAQy2GPOYO pic.twitter.com/sbNXiHdnkN — WLFI News 18 (@WLFI) April 22, 2019

Police are still hoping for fresh tips about one piece of information released in the news conference.

"We're still looking for the car that was parked in the lot," Riley told News 18. "If somebody can give us that information, we want that information as quickly as possible."

The importance of the car also ties into why police now believe the killer is local. Riley said after reviewing many tips, investigators determined he was able to get around quickly on the day the girls were killed, and seemed to know the area.

The car would have been seen between noon and five on Feb. 13, 2017 at the old DCS parking lot, according to police. The office is on County Road 300 North near the Hoosier Heartland Highway. The building has since been demolished and the lot is vacant.

Since police believe the killer is local, and because the case has received so much of their focus over the last two years, News 18 also asked Riley if there was a chance the killer could be someone police have already interviewed.

"Somebody may have already interviewed him," said Riley. "I'm not going to say they have or have not, but there's a possibility that has happened. The person apparently gave the investigating officers the information they were looking for. We have to try to go back and check on the information that we have received."

On Monday, ISP said more than 2,700 tips have come in since the April 22 news conference. Police have received 2,200 by email, 400 by phone and an additional 135 calls or walk-ins to local police departments and state police posts around the state since. In total, ISP has received 42,000 since the start of the email and tip line.

Email abbyandlibbytip@cacoshrf.com (preferred) or call investigators at (844) 459-5786.

Delphi Double Homicide Coverage