Kayla Mueller’s mother recalls pleas to Islamic State to spare her daughter

The mother of slain US relief worker Kayla Mueller testified Tuesday at the trial of one of her daughter's alleged captors

The mother of slain US relief worker Kayla Mueller testified on Tuesday at the trial of one of her daughter's alleged Islamic State (IS) captors, recounting the desperate pleas for her release and tortuous negotiations.

Marsha Mueller's emotional testimony came on the fifth day of the trial in US federal court of El Shafee Elsheikh, a 33-year-old former British national.