Like Douch, the alleged killer was also placed in the cell because of overcrowding at Mountjoy.
MOUNTJOY: Minister McDowell is under pressure' KILLED: Gary Douch
Douch, 21, from Coolock in Dublin, was serving three years for assault and possession of drugs when he was found dead in his cell on August 1 last year.
Drug addict Douch had spent the early years of his life in Coolock but after the family home was petrol-bombed his mother moved to Tallaght.
, 21, from Alder wood Green in Tallaght, West Dublin, was found dead in a cell in the jail on August 1.
The circumstances surrounding the Douch
murder are being investigated by Michael Mellett.
Mr Douch was killed by fellow inmate Stephen Egan, 23, in a special protection cell on August 1.
And Fr Murray told 1,000 mourners at Our Lady of the Immaculate Church in Darndale, Dublin, an animal would not have been kept in the cell where Mr Douch died.
, from Dublin, who was serving a three-year sentence for assault, had told prison authorities he feared for his life.
The spat of beatings come as an investigation into the murder of Mr Douch
begins under the control of Michael Mellett, deputy secretary of the Justice Department.
A spate of stabbings and the brutal murder of 21-year-old Gary Douch
have left officers wanting a state of emergency to be declared at Mountjoy jail.
Earlier this week, Gary Douch
, 21, was beaten to death in what was supposed to be a safe cell in the basement of the 150-year old jail.