reporter john o'brien of syracuse.com. >> some customers had come in and didn't realize she wasn't there until they'd been there for a while. they flagged down a deputy and no heidi. >> reporter: heidi's sister lisa woke up that morning to very bad news. >> and my aunt was on the machine. and she said, lisa, heidi's missing. >> reporter: missing? >> we saw her the night before when she delivered our easter baskets and in her usual goofiness. >> it was shocking that an 18-year-old girl could just disappear like that on easter morning. >> reporter: the convenience store was strung with crime scene tape by the time heidi's sister arrived. >> i just really felt like i was just watching a movie. >> reporter: inside the store, not promising. they had found heidi's purse. her car keys. money undisturbed in the register. no signs of a struggle. and her car was parked in the lot. >> i just remember sitting and just watching. i didn't know what to do. >> reporter: the community made a "find heidi" volunteer command center at the old firehouse while the authorities readied their first news alert. >

john bishop will keep looking for the answer here, unless mount st. helens awakens and reboots the landscape once again. i'm miles o'brienporting for the pbs newshour. >> woodruff: finally tonight, "hunger is the handmaid of genius." that's mark twain. in this latest addition to the newshour bookshelf, jeffrey brown explores the long, complicated tale of twain's own life, and how one of america's greatest writers, was also a pioneering stand-up comic. >> brown: in 1894, at age 59, mark twain was the highest-paid writer in the land, a national celebrity, author of "the adventures of tom sawyer," "huckleberry finn," "the prince and the pauper," and a slew of other books that are still required reading more than 100 years after his death. but he was also nearly broke, after several investments and business projects went bust. a new book captures what happened next-- "chasing the last laugh: mark twain's raucous and redemptive round-the-world comedy tour" it tells of his travels and performances across the american west, to australia and new zealand, india and south africa. i joined author richard zacks recently at one of tw

o'brien's wife committed suicide the previous year with her husband's off-duty weapon, following an argument the couple had. oakland major crimes initially treated her death as suspicious. attorney johnmember of an opd oversight committee. >> we need to get to the bottom of all of this, not only whether or not there's a homicide/suicide versus a suicide with notes that in fact implicates other people involved in a sexual relation or sexting other officers. >> reporter: burris questions whether a criminal investigation or internal affair investigation was conducted in a timely and prefgsal matter. >> if there's a cover-up, heads must roll. >> reporter: it's unclear whether more than three officers were involved. by phone, we were told, we didn't do anything. in oakland, abc 7 news. >>> bids in an online auction for the gun george zimmerman used to kill florida teenager trayvon martin reached $65 million today. but the site was apparently hacked, receiving fake offers for the weapon. according to the associated press, the leading bidder is listed as racist mcshoe face. a jury acquitted zimmerman in the death of trayvon martin. the foerl former neighborhood watchman has defended his dec

johns will stand by. if you get anything from the secret service we'll get to you pass that along. miles o'brienanalyst. i'm going to ask you to pivot. as far as aviation in and around the white house, surveillance, how can they all add to this? >> i always think about 1994 when a cessna 150 flew right into the white house during the clinton years. and it was a suicide mission by a disturbed individual. since that time, there has been a steady increase in the perimeter around the white house. it was not too long ago that you could drive your car right down pens pen avenue right in front of the white house. those days are long gone. and there is talk now of increasing the size of the fence. and of course we're talking about a complete no-fly zone over the city of washington, d.c. since 9/11. that was always prohibited air space anyway, but that's been extented and enforced in a more significant way. phil might be able to comment. i don't know if it's okay to comment about some of the defensive measures a rnd the white house that go after this kind of thing. >> i was just around the white house re