Gardai investigating the murder of an innocent dad of three in Tallaght have made a breakthrough in the case.
32 year old Stephen Lynch was targeted by a gang of men who deliberately hit him with a car on Brookview Close.
The dad of three was not known to gardai for any criminal activity.
It's believed detectives are investigating whether he got into a row with four men who were in a Ford Focus.
Officers carried out a raid following the murder in April but the first arrest in the case was only made last week.
A man in his 20s has been questioned about the brutal killing but has since been released without charge.
Gardai say their investigation is continuing.