at a maintenance supply company, did not appear to have known Kletzky, Kelly said. His only known criminal summons was for urinating in public last year. Kelly said that statements made by the suspect indicated that he kidnapped Kletzky and, as a neighborhood search for the boy intensified, he became panicked and killed him. We 're all in shock, said state Assemblyman Dov Hikind of the people in his district. What kind of people are out there that are capable of creating these dastardly acts ? Aron's ex-wife, Debbie Aron of Memphis, Tennessee, said she has been in total shock since she heard the news. She said her children from an earlier marriage lived with her when she was married to Levi Aron and that he helped take care of them. He also enjoyed karaoke. I can't believe it. It's definitely not in his character from... the person I knew, she told CNN affiliate WMC. Even as I talked to him not long ago, everything was fine, no indications that anything was wrong. After Kletzky went missing Monday, residents joined with local and federal authorities in a massive search effort. FBI spokesman Jim Margolin said the FBI assisted in interviewing witnesses and deployed the FBI's Crimes Against Children squad in the case. CNN's Jesse Solomon contributed to this report.