Evil Alexander Pacteau admitted he brutally murdered Karen Buckley and tried to dispose of her body in an acid bath.

The 21-year-old monster repeatedly clubbed her with a spanner, strangled her and dumped her in a barrel of caustic soda.

He is believed to have lured Karen, 24, into his car outside a Glasgow nightclub (pictured below) by offering her a lift home.

However, Pacteau drove to a secluded West End street and killed the Irish nurse within just 20 minutes of meeting her.

READ MORE: How soil helped cops trap twisted Pacteau

Popular Karen disappeared while out with friends at the Sanctuary nightclub in Dumbarton Road in the early hours of April 12.

Her worried friends raised the alarm within hours which triggered a major search operation.

Police repeatedly appealed for information about Karen's whereabouts, but investigation became a murder inquiry when her remains found in a barrel of "corrosive liquid" at High Craigton Farm, north of the city.

Here is a timeline of the murder that shocked Glasgow:

Saturday April 11

11.45pm: Miss Buckley and her friends arrive at The Sanctuary nightclub in Dumbarton Road, Glasgow.

Glasgow Times:

Sunday April 12

1am: She tells friends she is going to the toilet but does not return. She is seen on CCTV outside the club talking to a man and then walking west along Dumbarton Road towards Church Street.

Later that day, the student's flatmates raise the alarm when she fails to return home.

Monday April 13

Police appeal for information to trace the man spotted in the CCTV images with the student.

Glasgow Times:

Tuesday April 14

Police hold a press conference during which Miss Buckley's parents say they are ''desperate'' for her to come home safely.

Officers say they have traced the man spotted in the CCTV footage and he is helping them with their inquiries.

They also reveal Miss Buckley's handbag has been discovered in Dawsholm Park, near Dorchester Avenue in the Kelvindale area of Glasgow, early in the afternoon.

Wednesday April 15

Search teams and forensic experts scour the area around Dawsholm Park and a flat in Dorchester Avenue.

6.30pm: Police say a 21-year-old-man has been detained in connection with Miss Buckley's disappearance.

Glasgow Times:

Thursday April 16

1.10am: Police say they have recovered human remains on a farm on the outskirts of Glasgow, which they believe may be those of Miss Buckley.

4am: Police Scotland states that a 21-year-old man has been arrested in connection with the death of the student.

4.15pm: Police confirm the remains are those of Miss Buckley.

Friday April 17

Alexander Pacteau, 21, appears on petition at Glasgow Sheriff Court charged with the murder of Miss Buckley.

He makes no plea or declaration and is remanded in custody.

5pm: Miss Buckley's parents join hundreds of people at a vigil for the student in Glasgow city centre.

A piper plays as mourners lay flowers and others sing Scottish and Irish songs before a minute's silence in George Square.

Glasgow Times:

April 24

Pacteau makes a second private appearance in court and the case is fully committed.

April 28

Hundreds of people attend Miss Buckley's funeral in her native Mourneabbey, near Mallow, Co Cork.

August 11

Pacteau pleads guilty to murder when he appears at the High Court in Glasgow.