NEW YORK ( CNN ) -- She survived a bloodbath at a Lane Bryant store in Tinley Park , Illinois , by playing dead . The only survivor , she gave police a detailed description of the gunman . The Illinois State police worked closely with the survivor to come up with a composite of the gunman . Police are n't identifying their witness to protect her safety . Five other women lost their lives at Lane Bryant on February 2 , 2008 . The gunman is still at large . The crime began to unfold shortly after 10 a.m. when a man posing as a delivery man walked into the store . He chatted briefly with two customers and two employees . Then , police said , he pulled out a gun and announced a holdup . He forced the four women into the back room , police said . He bound them with duct tape and placed them face down on the floor . Two more women who later entered the store also were taken to the back room , tied and placed next to the others . Watch an update on the case » . Store manager Rhoda McFarland managed to call 911 from her cell phone at 10:44 a.m. , just before she was shot to death . She got to her phone while the gunman was distracted , even though she was bound by the duct tape . On the call , posted on the Tinley Park police Web site , a man can be heard saying , `` I 'm losing it . '' The six women were shot execution style . Five of them were dead by the time police arrived , a few minutes after McFarland 's call . A sixth woman survived . She , too , had been shot and left for dead , but tricked the killer by pretending to be dead . The killer was not wearing a mask or disguise , so she was able to describe him in detail . She told police he was a 6 foot African-American male , average weight , medium to dark skin tone , with braided hair and cornrows , husky build , and between 25 and 35 years old . His hair was pulled back , but one braid hung along his right cheek with light-green beads at the end of it , she told police . Police have released a composite sketch based on the witness ' description . Besides store manager McFarland , the other women slain were Jennifer Bishop , Connie Woolfolk , Carrie Hudek Chiuso and Sarah Szafranski . The investigation remains open and active , and all theories are still being investigated , police say . The investigation has included a thorough vetting of the victims ' backgrounds to determine whether any of them had any enemies . `` None of the victimology so far has led to any suspects yet , '' said Commander Pat McCain of the Tinley Park Police Department . Police are n't ruling out any theories , including robbery . The gunman took a few hundred dollars , police said . `` Certainly , the surviving witness did n't seem to recognize the killer , but maybe one of the dead victims knew him . We do n't know , '' McCain said . The weapon used was a .40-caliber Glock . Bullet casings were left at the scene and the killer took the weapon with him . More than a year later , forensics from the crime scene are still being processed , police said . Investigators wo n't comment on whether the gunman left any fingerprints , hair or other trace evidence . Police say they have received more than 5,000 tips and feel this case will be solved . But at this point , they have not named a person of interest or a suspect . Investigators are asking for the public 's help . There is a $ 100,000 reward for the arrest of the person or persons responsible for the Lane Bryant shootings . Have information ? Please call the Tinley Park Police tip line at ( 708 ) 444-5394 or go to the tip line on the department 's Web site .
Police release detailed composite of Lane Bryant shooting suspect . Store manager called 911 before being shot to death . On call , man can be heard saying , `` I 'm losing it '' $ 100,000 reward offered . Information ? Call tip line at ( 708 ) 444-5394 .