All Dressed Up

 It must be the day after Halloween. It looks like a candy store was murdered in my living room!

Here are the suspects:

Eva as "Hello Kitty"

 Gideon as "Kitty"

 Jeremiah as "The Lone Ranger"

 Joseph as "Harry Potter"

 Mary Rose as "Dora"

 (There she is!)

Stephen as "Ninja"