I have Long legs

This is a story that I heard from my friend.

There was an apartment where people died but nobody knew why the people died or who killed the people because the people are dead by heart attacks. This became a big mystery to the people who lived in the apartment. There was this boy that lived in the 64th floor and he didn't got scared easily and he was reading a booking at the window sill. This never concerned him about the heart attack story or he was stupid enough to do this. Anyway, this boy read the book then an old women appeared in front of the boy's eyes. This women was smirking at the boy. The boy didn't got shocked and thought that the reason people had died was this old woman freaking the people who live in the apartment. However, something very un-understanding happened " I have long legs, long legs, long legs!(In 100 rats song theme)" the old woman sang in a shrill voice. This made the little boy get a heart attack from the awkward song so all of the people moved away from the apartment. It was the crazy long-legged old lady that was singing and giving heart attacks to the people making her a murderer.