James P. Karr (Jim), 48, of Chicago, IL, CEO and founder of SteamVolt. Friend, mentor and inspiration to the entire coffee community. Loving partner of Esther Shaw. Beloved twin and friend of Steven (Sharon Shipinski) Karr. Cherished brother of Janet Karr- (Gene) McGahan, Sue (the late Ken) Musselman, devoted uncle of Amelia Karr, Ryan (fiancée Sheila Caporusso) Sean and Kaitlyn McGahan, Jake (Janelle), Bethany and Natalie Musselman, proud great-uncle of Chloe and Lucas Musselman, son of Nancy Karr . . .Jim Karr was setting up a large coffee machine in the 300 block of East Jackson Drive in Grant Park when he lost his balance about 4:25 p.m., police said. Karr grabbed the machine to steady himself, but it fell on top of him. Karr, of the 1900 block of West Henderson Street, was injured in his head and chest and taken to Northwestern Memorial Hospital, where he was pronounced dead at 4:56 p.m. Saturday.