Officials from Indiana State Police are investigating the cold case murder of Brandie Peltz, who was killed in Argos 22 years ago. The lead detective says they are already receiving tips from the public.

Last month, NewsCenter 16's Maureen McFadden interviewed author Thomas Crowell, who wandered upon the grave of 11-year-old Brandie Peltz. The Argos girl had been murdered in 1986.

Crowell started researching the murder and recently published a book called "The Passerby."

Brandie had been strangled, sexually assaulted, and left in a bathtub while her home was set on fire.

Both Crowell and McFadden were told by Marshall County officials that the Indiana State Police had reviewed Brandie's case from time to time.

After the story ran, WNDU received a call from Detective Tom Littlefield saying state police were never invited to look at the case, but they are now.

The Indiana State Police credit Crowell's book, the coverage by WNDU, and the interest of the Marshall County Prosecutor.

"We've already talked and I'm going to tell him [Detective Littlefield] where I've been in the last two and a half years, and I'm going to make this as easy as possible because he's going to do it officially," says Crowell.

Maureen McFadden talked to Crowell, who says he is elated.

"The real victim is Brandie. I feel bad for the family, relatives, classmates, but the real victim who is not with us anymore is little Brandie Peltz," says Crowell.

"I think that the state police will do a thorough investigation. They have more resources at the hands, labs and things like that," Crowell added.

Detective Littlefield told NewsCenter 16 that their department has already had several people call, claiming to have information about Brandie's death.

If you have any information that may help Indiana State Police solve Brandie's murder you can call Detective Littlefield at the Bremen post. The number there is 1-800-552-2959.