Peter Selis

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Demetrius Griffin, who was a guest at a Sunday, April 30, 2017, poolside birthday party at which a gunman opened deadly fire, stands outside the San Diego complex as he describes what he saw on Monday, May 1. He said Peter Selis sat on a pool chair during most of the rampage, calmly shooting guests at the party. "He didn't stand up. He sat the whole time. Even when he reloaded his magazine, he sat in his chair," said Griffin. (AP Photo/Julie Watson)