As 20th anniversary of 9/11 nears, questions, anger and death linger

On 20th anniversary of 9/11 attack, questions, anger, revenge and death yet linger

Though she has no independent recollection of her mother, Patricia Smith has spent 20 years missing and learning about her. Through stories imparted by relatives, family friends and Google searches, she has pieced her mom together like a shattered mirror reflecting an adventure-seeker who once ran with the bulls in Pamplona and swam across New York's Lake Placid. From a thin chain around Smith's neck dangles a pendant spelling out her mother's name in gold cursive letters. But a badge New York City Police Officer Moira Smith wore on that crisp late summer morning in lower Manhattan sits scratched and dented at the National September 11 Memorial & Museum, testament to the only female among 23 NYPD officers killed in the surprise attack on the World Trade Center. "It's the only piece of jewelry of hers that I'll wear," Patricia Smith, now 21, said of the necklace. "I get so nervous that I'll lose something. I feel that I only have so many things of hers left that I want to keep all of it." The five-part documentary series, "9/11 + 20: The Longest Shadow," narrated by George Stephanopoulos, streams for five consecutive nights on ABC News Live starting Monday, Sept. 6 at 8:30 p.m. ET.