A shirtless jogger and a man he's accused of killing with a single punch near a South Brisbane pub knew each other, police say.
Queensland Police are hunting for the jogger who attacked Timothy Lang on Saturday morning.
The 48-year-old died in a Brisbane hospital on Monday when his life support was turned off.
Police have established the two men knew each other, but have not said how.
The one-punch attack followed an alleged exchange of words between the pair near South Brisbane's Fox Hotel.
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Police have released CCTV footage of the jogger, captured as he walked past the hotel.
They have also appealed for witnesses to come forward.
The jogger is described as about 170cm tall, with short dark hair and shirtless, but wearing black running shorts with a red top tucked in to the waistband.
