. >> reporter: darnell harrington who said he was walking to a ferryboat in algiers point was shot inhe neck. >> i managed to get up off my feet. hit me in the back. i fell and hit the ground. >> reporter: his life was saved by this surgeon who says his hospital typically gets one or two gunshot victims over a 30-day period but in just the few days following katrina -- how many gunshot wounds did you get? >> six to ten. >> reporter: that's unusual? >> yes. >> reporter: the doctor says half of the gunshot victims died. clearly people were taking matters into their own hands. there was no shortage of panic, paranoia and lawlessness in new orleans. so there were many in algiers point who took extreme measures, measures they say had nothing to do with race but security. is it fair to say in your neighborhood, you organized basically a private militia? >> private militia, neighborhood watch. >> reporter: but a neighborhood watch with dozens of scores of guns? >> yes. >> reporter: he told me he and his neighbors had a huge number of weapons at the ready to keep criminals away. and that some

i'll protect my home. >> reporter: darnell harrington doesn't know who attacked him. >> i believe thoses were hunting black people. >> reporter: he believes there are people in this tight-knit community who do know. >> they've seen this documentary? >> if the brass is watching cnn, they know they've seen some of the highlights. officially we don't know. they've had every opportunity to talk with us. they've made a point, they've made it clear they don do the want to talk to us about it. we don't know if they are officially having an investigation. we do know the fbi is investigating this case. >> gary, appreciate it. >>> up next, a look at new orleans four years after the storm. james carville and i took a tour of the city. send your questions to ac360.com or text to 22360. (mom) i'm not going to be able to see her every day. or sit on her bed and talk about her day. but she's ready. thanks to walmart's unbeatable prices, i was able to get her everything she needed. as well as what she wanted. letting go?himom! (mom) that's the hard part. set them up for success, for less. save money. l