Jinn House

This is a house near Jesr al Abyad. It is said that this house has jinn.

The story that goes is that there was a family living in the house, but they ran off when they started hearing sounds and feeling harassed. It is said that people hear the Jinn make wudu at fajr time. Now my question is, how can jinn be evil if they are muslim and pray? Anybody heard another story? Or is it just an hoax?

I went really close to the house, and tried to look inside. All I could see was dirt and the shutters were closed. It was totally unattended. People looked funny at me for taking a picture of it. But hey, what are cameras for?

Ps. I know that we shouldn't interfere with jinn, and this is not my intention. I'm merely curious about the story that floats.