Heroin addict Ben Hope went about the murder of Aamir Siddiqi with "staggering incompetence", according to the prosecution.
Hope was already a known criminal and drug addict in Cardiff when the murder was carried out.
Jason Richards has a criminal past littered with violence which has landed him in prison.
He is a heroin addict who unapologetically made a living from peddling hard drugs on the streets of Cardiff.
The pair met in prison and their intimacy behind bars went on to become a drug-dependent friendship outside.
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After a relatively mild and quiet night, an episode of rain for many of us tomorrow.
The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.