Jelani Day went missing on Aug. 24. LaSalle County Coroner Richard Ploch says Day's official cause of death was drowning. Bloomington (Ill.) Police hide caption toggle caption Bloomington (Ill.) Police National Jelani Day's death is ruled a drowning, the coroner says October 26, 2021 Day, a Illinois State University graduate student, was reported missing on Aug. 24. LaSalle County authorities say the manner in which he went into the Illinois River is currently unknown.