Saverio Bellante has been committed to the Central Mental Hospital for an indefinite period, after he was found not guilty by reason of insanity of murdering his landlord.

Three forensic psychiatrists have agreed that the 36-year-old suffers from schizophrenia, and will require medication for life.

The family of Tom O'Gorman say they have felt absolute devastation since the death of their brother, and have asked that the State takes responsibility for Mr Bellante's future actions.

Last month, a jury found Mr Bellante not guilty by reason of insanity of murdering Mr O'Gorman.

The Sicilian man admitted killing his landlord in January of 2014 at the house they shared in Castleknock in Dublin - but doctors were agreed that he was in the grip of an acute psychotic episode on the night in question.

This morning Dr Damien Mohan, who has been meeting weekly with Mr Bellante since he was admitted to the Central Mental Hospital, gave evidence.

The forensic psychiatrist said the accused's condition has improved significantly since then.

Dr Mohan said Mr Bellante now knows his actions against Mr O'Gorman were as a result of a delusion or false belief, and he understands that he is at risk if does not take medication, which he knows he needs for the rest of his life.

Dr Mohan said he is satisfied that his patient still suffers from a mental disorder, and on account of the severity of the illness he poses a threat to others.

He can only get this treatment on admission to an approved secure centre.

Judge Margaret Heneghan said on the medical evidence, it was appropriate to commit Mr Bellante to the Central Mental Hospital - where his medical condition will be assessed every six months.

Catherine O'Gorman read out a victim impact statement on behalf of the family, saying that the last year and a half had been unimaginably painful and that it was impossible to articulate the impact on their lives.

Ms O'Gorman said her brother was funny, interesting and excited by life.

She described him as unfailingly loyal and said he was leaving behind a young niece and nephews whom he adored.

Keeping her composure throughout, she said she hoped the Irish State would do everything in its power to ensure that such tragedy never happens again - taking responsibility for the future actions of the accused.