 The fire happened on Nealsville Church Road near Shakespeare Boulevard about 10.30 on Friday morning. Fire investigators now say the cause of that fire was a motorized hospital bed that malfunctioned and overheated. Investigators say a family has been displaced and two cats are now missing and that there were no working smoke detectors in that home. Montgomery County Fire Chief Corey Smedley is urging everyone to again check to make sure that your smoke detectors are working in your home.