Police are on the hunt for at least two men involved in the hit-and-run death of a Gold Coast good Samaritan in the early hours of Boxing Day.
One person brought into custody for questioning on Tuesday has been released without charge and is no longer understood to be a person of interest.
Darren Pullar, 50, was killed when he was struck by a car leaving the scene of a disturbance at around 1.25am on Monday at Broadbeach Waters.
The incident is believed to have occurred after two masked men in their early 20s entered a neighbouring unit armed with a number of weapons, before Mr Pullar attempted to intervene.
"There's no evidence to suggest he was involved in the lead-up to this incident, it may be a case of the wrong place, wrong time," Detective Acting Inspector Greg Aubort said on Monday.
Det Aubort also said the men left in a black late-model sedan with tinted windows.
Family members have taken to social media to plead with anyone who may have any knowledge of the incident to come forward.
"If anyone knows anything or may suspect, who these people are.. Please contact the police immediately," Nealy Smith, who said her cousin was Mr Pullar's son, wrote on Facebook.
"Justice needs to prevail and these bastards need to be found!!!"
Ms Smith also paid tribute to the 50-year-old's actions in the incident.
"Such a kind and fun-loving person," she wrote.
"Darren, died a hero trying to save others lives. No one deserves this or to loose (sic) a family member Christmas Day."