After allegedly shooting and killing his wife in their Spring Grove home, retired Chicago police officer Lorin Volberding sat with her coat draped over his shoulders as he smoked a cigarette and joked with officers in a police interview room. Prosecutors rested their case against the 74-year-old accused killer on Tuesday after playing a more than hourlong video-recorded interview between Volberding and two McHenry County Major Investigation Assistance Team officers. During the interview, Volberding joked and spoke about his wife, Elizabeth Volberding, in present tense.