Two men arrested in 'Guinea Pig' murder probe released without charge
Two men arrested by gardai investigating the murder of Mark 'Guinea Pig' Desmond have today been released without charge.
Yesterday, four others also arrested in connection to the murder were released without charge.
The three men and one woman were arrested earlier this week.
According to gardai a file will now be prepared for the DPP.
Desmond, who was known as the 'Guinea Pig', was shot dead last December in a west Dublin park.
He was the chief suspect in at least four murders and had been working for a drugs gang at the time of his killing.