(CNN) -- Two women shot to death by a man at an Elkhardt, Indiana, grocery store may have known their attacker, police said Thursday.
Police shot and killed Shawn Walter Bair, 22, Wednesday to end the rampage at Martin's Super Market.
Although state police said they do not believe the three knew one another, State Police Sgt. Trent Smith told CNN on Thursday that investigators have received calls that Bair may have had some relationship to the two women.
The nature of that relationship, if there was one, wasn't immediately clear.
The women's names have not yet been released.