The owner of a business on Indianapolis' east side was found dead at the business Thursday afternoon, an apparent homicide victim, police said.Indianapolis police were called to the 3100 block of East New York Street at about 1:15 p.m. after a postal service letter carrier made the discovery.When officers arrived, they found the body of Johnnie Conner, 73, inside Johnnie's Glass and Frames.Police said they think robbery was the motive, but they didn't release information about how he died.Investigators said that between 11 a.m. and 1 p.m., someone came into the store, which was open at the time, and killed Conner."This is somebody who obviously didn't care about the time of day or the location," said Indianapolis police Sgt. Paul Thompson. "Anybody could have walked in at any time, so I think we're dealing with a very dangerous individual."The man had owned the business for 33 years and had lived nearby for 50 years, 6News' Sarah Cornell reported.Friends said Conner was care-free, friendly and loved to take trips in his RV."Everybody knows him. On the east side, everybody knows Johnnie's name," said neighbor Melissa Siddall."I think it's awful that anybody would do that to him as good as he's been to people around here," said neighbor Frankie Reed.An autopsy will be performed on Tuesday. Police asked anyone with information to call Crime Stoppers at 317-262-TIPS.