Feelings of pain and loss remain a daily fixture for Kim Louks, Brookley's mother.

"This is living torture. I mean, it's torture every second of every day of every week, and it doesn't go away," Louks said.

Four years ago, Brookley vanished from her home. The main suspect in the case, Joseph Nowicki, died in 2003. Before his death, Nowicki told police Brookley met with ill-fate, but refused to tell them where she was, 6News' Jennifer Carmack reported.

"There is someone out there that knows something. I know that people know things," Louks said.

With no breaks in the case for years, the FBI became involved with the case last month.

"They have different equipment, different specialists, different detectives, a different set of eyes," Louks said.

Many people have urged Louks to make a death declaration and hold a memorial service for her daughter, but it's something she just isn't ready for.

"I know the probability that Brookley is gone is 99.9 percent, but until I have Brookley home, I don't know that she is dead,” Louks said. "If she is not dead, then she's probably going through hell and I can't deal with that."

Investigators asked anyone with information about the case to call Greenwood police at 317-882-9191.

Previous Stories:

• June 15, 2006: Police Offer Missing-Woman Case To FBI
• September 11, 2003: Suspect's Death Brings No Leads In Missing-Woman Case
• August 31, 2003: Suspect In Case Of Missing Greenwood Woman Dies
• July 11, 2003: Grand Jury To Mull Case Of Missing Woman
• July 7, 2003: Prosecutor: Suspect Could Soon Be Charged In Woman's Disappearance
• July 4, 2003: Ailing Suspect In Woman's Disappearance Not Returning To Jail
• July 3, 2003: Released Prisoner Could Go Back To Jail
• July 1, 2003: Suspect In Woman's Disappearance Ordered Released
• June 25, 2003: Suspect Hints He Could Provide Info About Missing Woman
• May 29, 2003: Missing Woman's Grandfather Denied Access To Case Info
• April 23, 2003: Missing Woman's Grandfather Goes To Court For Case Info
• January 12, 2003: Coroner: Intoxication Killed Father Of Missing Woman
• November 5, 2002: Father Of Missing Greenwood Woman Found Dead
• September 17, 2002: Search Continues For Missing Greenwood Teen
• August 22, 2002: Prosecutor: Missing Teen's Father Must Answer Questions
• July 30, 2002: Drugs May Be Connected To Greenwood Woman's Disappearance, Records Show
• July 29, 2002: Suspect In Teen's Disappearance Pleads Not Guilty To Unrelated Charge
• July 26, 2002: Suspect In Teen's Disappearance Arrested On Unrelated Charges
• July 18, 2002: Police To Reinterview Man About Missing Greenwood Teen
• July 18, 2002: Police Search Home In Case Of Missing Greenwood Teen
• July 1, 2002: Police Baffled By Disappearance Of Greenwood Woman