Daniel Monroe was Nikita's fiancé before the start of the season. He didn't know of where she really worked, only that it was stressing her out. His date of birth is recorded on his gravestonea s March 23, 1973, and the date that he died as July 17, 2007. This makes him 34 at the time he was killed. His death was at the hands of a Cleaner (later revealed to be Owen Elliot) and made to look like he drowned. Owen later apologizes for killing Daniel.
Nikita101 361

Daniel's headstone.