Deborah Cosloff was born in 1998, with her happily married parents detective Layne Cosloff and Lana Cosloff. Deborah is a good sister to David and she always loves her brother David. Deborah always counted on David because he is her big brother.
her death in 2005
In 2005, on December 28th, When the Dark Alpha came, Dark Alpha slit Deborah's throat. She died after her parents. David was the only Cosloff alive on that day.