for the pbs newshour, this is economics correspondent paul solman. >> sreenivasan: in the coming weeks, paul will return with a second conversation, from a well-known conservative thinker and writer, charles murray. now, coming to terms with a beloved son turned killer... in a mass murder that would shock the nation. jeffrey brown has this latest addition to the newshour bookshelf. a warning: the conversation grapples with a subject that may be upsetting to some viewers. >> brown: april 20, 1999, columbine high school in littleton, colorado. two seniors, eric harris and dylan klebold, walked into the school armed with weapons and homemade bombs. less than an hour later, 12 students and one teacher were dead. 24 students injured. and the two shooters had turned the guns on themselves. it was a searing time for the community, for the victims' families, and for the nation. 17 years later, sue klebold, the mother of dylan, writes of a son she thought she knew, the parent she thought she was, a tragedy and its aftermath her new book is, "a mother's reckoning." sue klebold joins us now from

for the pbs newshour and the power of markets, this is economics correspondent paul solman, wishing the rest of you the best of luck. >> woodruff: next, another in our race matters series. special correspondent charlayne hunter gault travelled to montgomery alabama to speak with former police chief kevin murphy about the solutions he found to create a more responsive and cooperative police force. during the 50th anniversary of police violence against peaceful civil rights marchers in selma, alabama that ended in montgomery, police chief kevin murphy did something surprising. he apologized to congressman john lewis, a frequent victim of that earlier violence and handed him his badge. we caught up with muchy where he now dr. murphy where he now works as montgomery county sheriff and where his solutions are still in place. thank you for joining us. >> thank you for having me. >> reporter: what moved you to hand congressman lewis your badge that day? >> i saw him come to montgomery over a several years' period. they would follow the civil rights trail and spend time in montgomery. as a youn

economics correspondent paul solman has the story, part of his series "making sense," which airs every thursday on the newshour. >> reporter: it was an ad blitz to attack even the most innocent bystander. ahead of the 2015 nfl season, the two leading daily fantasy sports companies, fanduel and draftkings, aired a national ad every 90 seconds. together, they outspent the entire beer industry in the month leading up to opening kickoff, $207 million. comedian john oliver made it a subject of his weekly hbo show, including this spoof commercial. >> i've been using fanduel since i saw all those ( bleep ) commercials on all the time. >> daily fantasy is the best. i get to play every day. >> you mean, you get to gamble. >> it's not gambling. >> oh it's definitely gambling. you have a massive gambling problem. >> it's actually a skills based game that is going to make us rich one day. >> you're an idiot. >> reporter: journalist jay caspian kang is no idiot. i met up with him at brooklyn's 200 fifth avenue sports bar, where the sports junkie, who played the sites for 17 weeks and wrote about it

. >> sreenivasan: leading up to valentine's day, paul solman takes an encore look at the economics of dating, how some people are using market principles to overcome the traditional impediments to finding the perfect match. its an updated presentation of our making sense series, which airs every thursday. >> reporter: facebook software engineer mike o'beirne, aka" cirrusly" online, had been looking for a date since moving to new york four months earlier. >> it was really at my brother's urgings. he told me i need to start going out and dating people. >> reporter: ad agency art director priyanka pulijal, also new to new york, her love handle was "brbeatingcupcake." the brb is webspeak for "be right back." >> i think you have to meet a lot of different people to first understand what you want. and i think, once you understand what you want, you have a lot of different options. >> reporter: so what did they want? each other? >> hi. nice to meet you. >> reporter: last february, they agreed to let us record their very first date. >> do you guys mind leaving now? >> reporter: ok, we would b