The body of 36-year-old William Moorehouse was discovered near a playground in the Ballywaltrim area around 6pm on Sunday.
He was found with serious injuries but was pronounced dead at the scene a short time later.
Members of the Garda Technical Bureau have focused their investigations on the playground, as well as a nearby community centre car park.
Two primary schools in close vicinity of the scene have remained closed while examinations are carried out.
No arrests have been made.
Anyone with information is asked to contact the incident room at Bray Garda Station on 01-6665300 or the Garda Confidential Line on 1800 666 111.
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