THE BRUTAL murder of Alex Fitzpatrick will be examined in a documentary airing 24 Hours in Police Custody on Monday 25.

       Here's what we know about convicted murderer Robert Parkin.

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       Rob Parkins stabbed his girlfriend's ex to death 2

       His mum Janet was interviewed by police after his arrest Credit: channel 4 Why is Robert Parkins in prison?

       Rob Parkins, 33, left Alex Fitzpatrick, 30, to die in a pool of blood after knifing him 17 times in the neck and chest.

       The murderer fled St Neots, Cambbridgshire, and hid out at his aunt's home almost 80 miles away in north London.

       On October 13, 2019, Alex dropped his son, then aged nine, at Kelly's home after taking him swimming.

       He returned to the house shortly after when he released the lad had forgotten his glasses.

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       But a row broke out between Alex and Parkins, who stabbed the dad repeatedly with a knife in a "brutal, frenzied and sustained attack".

       Alex was declared dead at the scene, while Parkins fled shortly after as police launched a manhunt.

       Parkins was charged with murder but claimed he was "not aware" he was holding a knife when he fought with Alex.

       But jurors saw through his lies and he was convicted in just over two-and-a-half hours following a trial.

       Parkins was jailed for life with a minimum of 19 years for causing "horrendous and unsurvivable injuries" to Alex.

       But for Janet, the pain at losing her son to prison is still evident despite his conviction.

       She says: "It's so hard for us, our life is not going to be the same without him.

       "Everywhere I turn I see Robert - I see him when I look out into the garden…I walk round to the shop, he's coming round the corner.

       "He's just always there. And now he isn't."

       When was he arrested on 24 Hours of Police Custody?

       His dramatic arrest has now been explored on Channel 4 show 24 Hours in Police Custody in October 2019.

       The documentary explores Alex's death and how officers tracked Parkins down to his aunt's home almost 80 miles away in north London.

       His mum Janet tells the show how a woman approached her and Parkins' dad around a week after the slaying asking if they lived where the "murderer" is.

       Where is Robert Parkins now?

       Parkins was jailed for life with a minimum of 19 years for causing "horrendous and unsurvivable injuries" to Alex.

       But for Janet, the pain at losing her son to prison is still evident despite his conviction.

       She says: "It's so hard for us, our life is not going to be the same without him.

       "Everywhere I turn I see Robert - I see him when I look out into the garden…I walk round to the shop, he's coming round the corner.

       "He's just always there. And now he isn't."