In a written update shared Friday, Liz Waddell's husband said he now believes drowning may be the most likely explanation for her disappearance.
It has been nearly six months since Nancy Guthrie's abduction.
Elizabeth "Liz" Waddell was last seen Wednesday on a beach in Grenada.
Specialist Sayveon Anderson was last seen on June 29, according to his family.
Loved ones say it's unlike him to go this long without contacting them.
A Mississippi community is mourning the death of 18-year-old Nolan Xavier Wells, whose body was believed to be recovered after going missing on July Fourth.