and why are some people happier than others and at that time only one researcher in psychology ed diener was doing research on happiness and it was sort of considered this very fuzzy kind of unscientific field in fact diener didn't even use the word happiness he called it subjective well being it just sort of sounded more scientific and so that's kind of a start it was it was serendip. but you know happiness is really the holy grail i mean most people in the world say they want to be happy most people are interested in happiness and so i'm just been submitted a great field to be in for these for all these years what we what has been your methodology. sure sure well you know first of all we have to measure happiness and there's no point there's no thermometer of happiness so we have to we just ask people whether they're happy and how satisfied they are with their lives and how frequently they experience positive and negative emotions but mostly what i do are called happiness interventions so these are basically experimental studies that are done over time kind of like clinical trials but

on on a part-time basis, driving leopold to weekend events, appointments and lunch tess double t dienern corral on weekends. he did not testify about ferrying him to sexual trips. that came from other officers earlier in the trial as well as county employees, who say they were afraid to say no to leopold. also in the courtroom but only as a spectator, a woman with more than a passing interest. >> the testimony is so indicative of how this man victimizes everyone. >> she was the county spokeswoman in 2007 and 2008. she's suing him for sexual harassment. >> people's dignity has been violated in serving him and out of fear. >> in further testimony, officer phelan until crocks said he was never called upon to empty the catheter bag as others testified they were. he testified they always had campaign signs and one told him to put them up, but rescinded the question over concern that he shouldn't be doing that. the defense elicited testimony to there wasn't much in the way of guidelines. judge dennis sweeney will be deciding his guilt or innocence as well as sentence, and he could get up to f

a clarendon community eischen. 26-year-old javon martin is charged with killing and robbing carl diener beaten and stabbed in the early morning hours. he was on his way to one of hi part-time jobs at a local gym. that crime sent a shockwave thus arlington. his cousin has already pled guilty in this case. >>> it happened in just a matter of machines. more than 200 people killed when a nightclub burt into flames in brazil. while it may not be top of mind when you're out and about, there are some things that can help you stay safe in night clubs. darcy espner tells us what to look for. >> hundreds lost their lives when a nightclub went up in flames. that was the reaction from prince george's county mark mayshore. he says what happened in brazil was very similar to what happened at a rhode island club a decade ago. people tried trying to escape the. >> in most of the cases, people walked into a front door, and that's all they knew, and when panic and fear struck, they reverted back to what they knee, which was that front door. >> we checked in with area juddss, that they generally don't all