A young boy was climbing a ladder at the Toys R Us in McAllen to get to the loft. When he got to the very top he fell and was killed instantly by having his neck broken. Every once in a while during the night shift, the night crew hears a young boy laughing and running around in the loft. Lights sometimes turn off and on and certain locked doors will open but remain locked.

This may be more an urban legend.  Like the lady in white walking by the side of the road. But you never know...