Former neighbourhood watch volunteer George Zimmerman says he is vetting bids after closing an auction for the handgun he used to kill unarmed black teenager Trayvon Martin.

The pistol George Zimmerman used in the fatal shooting of teenager Trayvon Martin is to be auctioned online.

A Florida man charged with shooting at George Zimmerman last week had “a fixation” on the former neighbourhood watch leader and had recently been admitted to a mental institution, according to a police report made public last night.