The blunders made by the killer of teenage murder victim Jayden Parkinson led him straight into the hands of the police, a new documentary reveals.
Jayden, 17, disappeared after being spotted on CCTV leaving Didcot train station in Oxfordshire with her violent ex-boyfriend Ben Blakeley, then 22, on 3 December 2013.
He was seen returning to the station later that day - and she was never seen again.
Her body was found in buried in Blakeley's uncle's grave two weeks later and he was arrested, charged and convicted.
He regularly beat her and was often controlling and obsessive. She plucked up the courage to leave him and move into a hostel a month before she died, but had got back in touch to say she was pregnant with his child.
A new episode of When Missing Turns To Murder on Crime+Investigation looks at how a catalogue of basic errors meant police were able to pin the murder on Blakeley in just five days.
The blunders made by the killer (Ben Blakeley's police mugshot, right) of teenage murder victim Jayden Parkinson (pictured, left) led him straight into the hands of the police, a new documentary reveals.
One of the senior investigating officers who worked on the case told the programme how buying a suitcase to dispose of the body and then ordering a taxi to help him move it was what first gave him away.
DSI Christopher Ward said: 'The taxi driver said he had collected a man from a dirt track in Didcot at about one o'clock in the morning.
'That person had a large blue suitcase which was described as being covered in mud, and it was very, very heavy.'
Jayden's mother Samantha Shrewsbury told the programme: 'He couldn't lift it on his own and got the taxi driver to help him.'
Later when police were doing house-to-house enquiries in the area, they spoke to Blakeley's grandmother, who said he had been to the house to pick up a suitcase recently.
DSI Ward continued: 'One of the houses they knocked on was the grandmother of Ben and his brother Jake.
'She said that Ben had come into her house a few days before, very agitated, saying he needed a suitcase.
'He took her suitcase, after having emptied the contents onto her floor. He came back a few hours later and dumped that suitcase in her shed, and it was covered in mud.'
Blakeley was found guilty of murdering Jayden (pictured) and handed a life sentence at Oxford Crown Court in 2014
A search of his grandmother's house also revealed two spades that were covered in the same thick mud as the blue suitcase from the taxi.
Police then commissioned an RAF helicopter to fly over Didcot taking aerial pictures of the area to
