Writing out three talaaqs under duress

My sisters husband gave her three talaaqs about two weeks ago. After five months of marriage. It was a letter signed by him & written in her absence, then brought to my sister by somebody she didn't know. Her father-in-law was behind all of this. Her husband said his dad wrote letter first, so he tore it up. Then his parents made him re- write it watching him. He said his dad would disown him if he goes against his dad. He even told my dad the day before that he still wants to be with my sister. She saw him crying when his dad made this decision for him. Now he says he didn't mean to. Clearly he was under duress will this talaaq still be counted?