Yip Kai-foon was gunned down by the police after 'standing alone' from his accomplices and refusing to surrender, the High Court heard yesterday.
Constable Chow Hau-leung told of 'a single human shadow' which kept apart from other members of the fleeing gang surprised by police officers in the early hours of the morning.
The figure continued to face the police as he moved away and was hit by three bullets in the shootout that followed, the court heard.
Only after he slumped to the ground did officers recover a bag containing 1.8 kilograms of explosives and two radio-controlled devices, the officer testified.
His gun was recovered and was found to have jammed, the court was told.
Yip, 35, now confined to a wheelchair, has pleaded not guilty to possessing explosives with intent to endanger life or injure property, possessing arms and ammunition, and using a firearm to resist arrest.
Constable Chow said he and a colleague, Chan Chi-sing, spotted the gang of silhouetted figures near the Kennedy Town waterfront on May 13 last year.