Dr. Martin Cohen and his wife of 25 years  Ethel were just enjoying a quiet Saturday Night, relaxing and watching television  barefoot together, a tradition  every Saturday Night in their Hockessin , Delaware Townhome  while their 24 yr  old son who they doted on was upstairs listening to music !! They felt blessed and safe to have their son living with  them in Delaware after moving from Illinois !! Little did they know, what was lurking like a time bomb upstairs and ready to attack.