William Tanner squats near his burned Chevy Malibu. (Credit: Chandra McCormick & Keith Calhoun)The ProPublica/Nation probe of violence in the aftermath of Hurricane Katrina has sparked intense discussions on a slew of blogs and Web forums -- as of this posting, more than 500 people have commented on YouTube alone.

As the reporter on those stories and companion video, this week I'll be part of the online conversation, answering your questions here. If you're wondering how I got to know the gunmen of Algiers Point, what's happened since the stories were published, or anything else, send your questions to ac.thompson@propublica.org, or leave them below in the comments section.

If you missed the stories, click here.