A man has been arrested in connection with last night's fatal stabbing in Ballyfermot.
The father of five was attacked at Cherry Orchard Avenue after disturbing people outside his house tampering with his car.
Gardai have now taken a man in his twenties into custody.
He was arrested at 9.30 this morning and is being held under section 4 of the Criminal Justice Act.
He can be detained for up to 12 hours.