更新1:
hoping to better understand what happened nearly six years ago. While (while 是否解而在?) in court today, one officer described how he had swapped 交換 his lunch break with Leung, which (which 是否指 how he had swapped his lunch break with Leung?) led him to the scene 現場 of the shooting,
更新2:
while another officer testified (testified 怎解?)the gun, which was used in last year's Tsim Sha Tsui shootout 交火, was stolen from the scene. The above English was written from ATV Main News at 19:30. You may revise it if you like. Thanks.