when we moved to waukegan my parents rented a duplex we lived in the lower floor it was just a big room with a bathroom so we all slept in the same room.the first time i seen the man he was standing at the end of my mothers bed. just staring at her not moving then he would walk away vanishing into a wall. my mother being a sleep never seen him. so one day i asked who the man was she asked "what man?" i told her the one who went in the wall. of coarse she thought i was dreaming. and laughed it off. she said the next time the man was their to wake her and show her. a few weeks went by and the man didn't appear then one night he was there so i slowly made my way to my mom's bed. he didn't move or even blink just stood there at the end of mom's bed. so i woke my mom she looked and freaked. she yelled at him to get out that my dad would be home any minute. the man didn't blink or move his face was expressionless then he turned and walk right threw the back wall. mom freaked packed us up and we went to grandmas where she called the police and my dad she left us at grandmas and went back to the house to wait on the police and dad when they came to get us i could see mom was visibly shaken my dad changed the locks on the doors thinking it was an intruder.nothing happened for a while then one night we were playing games dad was home from work when we had a power outage my mom lit a small lantern and we sat at the table still playing when the man apeared and walked to the end of the bed and stood there you could here a pin drop. he just stood there motionless. finally mom said "what do you want" the man turned and walked back threw the wall my parent sat there dumb founded the next day my dad went to the wall and punched a hole in it with a hammer and found a door. he called the landlord and she came over he asked if it would be okay to tear down the wall she agreed so he did they found a door it was nailed shut so he pried it open and inside was a skeleton so they called the police we moved out of there the next day. apparently the man was killed in the room by his wife and she nailed the door shut and had a wall put up to cover her crime mom figured the man was the ghost of the deceased telling us where to look.