Unable to cast “IsDead” this in the transition blueprint successfully

Unable to cast “IsDead” this in the transition blueprint successfully
I am Really sorry, I am really new to this and so far I have been following a book to get to this point and now I am stuck. I want to do a transition in Locomotion to Kill State and I need to access “IsDead” variable in my EnemyCharacter Blueprint. However I am unable to cast “IsDead” this in the transition blueprint successfully. My enemy characters are Spawn (screen shut included)
I have been reading on Casting and BP Interface for the past 3 days with no luck.
Thank you for your help