Charles Self lived in a small mews off Brighton Avenue in Monkstown with well-known DJ Vincent Hanley.

On Thursday, January 21st 1982, he was found slumped in a pool of blood in his Monkstown home after one of the most brutal murders the city had ever seen. Forty years later, no one has ever been charged with the crime.

Below are floor-plan diagrams of the crime scene created from sketches drawn by Charles' good friend Bill Maher, who lived in the house for six months.

Inside the Crime: The crime scene | ground floor. Image: Newstalk

Charles was found lying on his side in a pool of blood at the bottom of the stairs.

A heavily bloodstained tea towel was beside his face. His black sweatshirt had been pulled up under his armpits.

His right arm was slightly flexed and his left extended behind his body so that the left hand lay on the floor in a pool of blood behind the small of his back.

His legs, from the knees down, lay inside the living room area. The rest of his body lay on the floor of the entrance hall – around three feet from the front door, which was preventing it from being opened.

Charles Self.

He had been stabbed 14 times, his throat had been slashed and a ligature was found around his neck.

Music was still playing on the stereo when he was discovered and the living room had been ransacked. Records, tape cassettes, ornaments, magazines books and clothes were strewn across the floor.

Inside the Crime: The crime scene | Upstairs. Image: Newstalk

In Episode Two of Inside the Crime, Bill Maher describes the house in his own words.

“Well, it was a small mews,” he said.  You just walked in the door and the stairs went straight up in front of you and then there was a little door on the right-hand side into the main living room.

“That was quite a sizable room but it was full of clutter.

Bill Maher. Image: Rory Walsh/Newstalk

“Charles had loads of records and videos and he did things like, he had a box full of matches that he collected from anywhere he went in the world - restaurants, hotels or whatever - there was a basket of those on the floor.

“Then there was a tiny kitchen at the end - and I mean tiny. Very long and narrow; It was the length of the mews and narrow.

“Then up the stairs you went and there was the bedroom that had been Vincent Hanley’s that I rented for a while.

“Next to that, there was a small bathroom and then, at the end of the little hallway there, there was an airing cupboard and then there was Charles’ bedroom, which was the main bedroom and was quite large.”

A plan of Charles Self’s home as drawn by Bill Maher. Image: Inside the Crime/Newstalk

In the second season of Inside the Crime, Frank Greaney examines the murder, the controversial investigation that followed and the deep impact the crime had on Irish society.

Throughout the series, Newstalk.com will be bringing you Deeper Inside The Crime with everything from pictures and video to timelines, crime scene graphics and in-depth articles – and you can find it all here.