IOWA CITY, Iowa (AP) — Investigators in eastern Iowa say no charges will be filed in the June drowning death of a 21-year-old woman whose friends and family have pushed for more information about the case. The Johnson County Sheriff’s Office said University of Iowa graduate Makeda Serenity Scott drowned while boating with a co-worker on Lake MacBride. In a statement, the office said that Scott was not wearing a life jacket when she lost her balance and fell off the kayak into the water. The co-worker tried to throw Scott a life jacket and made attempts to save her before she disappeared underwater.