Diana Avera vanished from Searcy Hospital in Mount Vernon in 1982. Relatives say they didn't learn until 2020 that she was never officially reported missing.
Prosecutors said Jamia Campbell's absence forced them to dismiss charges against Julian Woods, who was accused of a double homicide in Prichard.
Voncille King faces charges of attempting to lure a 12-year-old and separate drug possession counts.
Tarrah Moody faces charges after prosecutors say she shot a man.