36 year-old William Moorehouse was found injured in a playground in Ballywaltrim in Bray on Sunday evening and was pronounced dead a short time later.
A man in his 30s, arrested as part of the investigation has been released without charge.
Seven people have been arrested in connection with his death - all have now been released without charge.
Irish Coast Guard, RNLI and Water Safety Ireland urge everyone to 'Unite to Turn the Tide
July has been one of the busiest months in years for rescue services, with warm weather bringing more people to Wicklow beaches, rivers and lakes.
Bray Wanderers Head To Cobh Amid Apparent Cross-Channel Interest In Seagulls Talent
New Laws Boost Protection In Wicklow Mountains National Park
A dedicated National Parks Bill will put nature conservation first and help manage growing visitor numbers.
Woman Dies In Waters At Wicklow Beach
The incident occurred on the outskirts of Wicklow town, near the Blainroe golf club.
Wicklow Housing Remains Ireland's Most Expensive Outside Dublin
Strong demand, low vacancy and limited housing stock are keeping county prices elevated.
2:00pm - 6:00pm
More Music Weekend
Heavy rain shower
High: 21°C | Low: 13°C
Heavy rain shower
High: 21°C | Low: 12°C
Heavy rain shower
High: 21°C | Low: 11°C
Heavy rain shower
High: 19°C | Low: 12°C
Heavy rain shower
High: 20°C | Low: 12°C