A Different Meaning to the Term "Gunner"?

Read this and see what I mean.

There will be a big investigation into this, as the report is that Washington Wizards players Gilbert Arenas and Jarvis Crittenton drew guns on each other after Crittenton tried to collect on a gambling debt. Arenas allegedly drew first.

Let's not convict anyone on the internet or in the media, but if this were to prove to be true, well, yikes!