Walter Parazaider, a co-founding member of the rock band Chicago and a saxophonist and flutist, dies at 81. Multiple outlets report that he was diagnosed with Alzheimer’s disease and that his death occurs after complications from the illness, with several sources noting he was in hospice care. Parazaider is described as being part of Chicago from the band’s early period beginning in the late 1960s; one report says he remains with the group until his retirement in 2017. Sources also credit Parazaider’s contributions to the band’s sound, including saxophone work featured on songs such as “Just You ‘n’ Me” and a flute solo on “Colour My World.” Several reports include statements from the band describing his role in shaping the group’s music. Parazaider’s death is announced by family members and/or the band, with one outlet citing confirmation from his daughter and another citing an announcement made by Chicago. The specific circumstances are presented consistently across outlets: a years-long battle with Alzheimer’s leading to his death.