here's the map on a section of the beach near taraval street. the medical examiner says the was inside a running shoe and had been in the water for a while. there was no sign of the rest of the body. authorities say the shoe was a green and black puma running shoe size 11 1/2. >>> fear and chaos. that's what unfolded in d.c. today when a gunman opened fire in the washington navy yard this morning. 13 people are dead including the suspected gunman. 34-year-old aaron alexis. police are still looking for other potential suspects. nbc bay area's steve handelsman is live in washington, d.c., and steve, that suspected gunman was a military contractor? >> reporter: indeed. maybe even currently before he lost his life or took his own life here today. police haven't said which one it is, jessica, but it was fear, chaos and death here at the washington navy yard. just now, they're re-opening some of the streets. you can see behind me a few cars moving but thousands of people still reportedly in the bay being processed out. while the fbi tries to figure ou