he doess notold back inis feelings. >>> also right now trump as you know a big no-show at the debate last night. and this morning, bill and chelsea clinton set to join hillary in iowa. the three appearing for the first time together o o thehe campaign trail since hillary announced her campaign. >>> new concerns about the mosquito-borne virus, zika. this morning, more than 30ases now reportrt in the u.s.s and authorities revealing one person diagnosed in new york city is that. >> a lot of anxiety out there.

for the next couple of days. in d.c. melting more of that >>> "good morning america" is

impact in the area. please stay tuned as we move

warning sign if you forget that person completely. not good. >> i'm glad you put it up like that because it really lets you know. a simple test. >> i want to caution thi is not diagnostst of any kind of medical condition but it's a way to assess the way we form short-term memory. >> what do we do. >> grab a pen and piece of paper. look at t tse 1 words, take a look and try to remember as many what we know memory occurs in basically three stage, we have to encode the information and consolidate the information and then we have to retrieve that information. w we'llake that down, give everyone a second. try to write down as many of those words as you can. >> are you doing it too, george. >> i hope everyone has had their coffee in the morning. again, these kind of brain games -- >> oh, no cheating, robin. >> i got in at 2:00. >> we'll put it up again. >> okay, and take a loooo and see how you did. >> oh, my gosh. >> george. >> george did really well. >> you're on point this morning.

reaper oh no baby no baby not today reaper oh no baby no baby not today [ cheers and applause ] >> thank you. >>> "gma's" winter concert series is presented by hilton. ready and waiting for you in

this morning police say please don't. we will tell you w w coming up. >> not a good idea. we begin this half hour, though, with that startling new theory about o.j. simpson from the groundbreaking dtor featured in the movie "concussion" and he is convinced his years on the field field may have given had i'm a brain disease. abc's ryan smith is here with that story. have you our attention, ryan. >> reporter: good morning, robin. a few names in sportss more polarizing than o.j. simpson turning him from a football star to a pariah but dr. bennet omalu thinks he has vtsz from thousands of hits on the football field and should serve as a cautionary tale. acquit. >> are you having a problem putting that on your hand? >> reporter: he's the most infamous football player in sports history acquitted of double murder, o.j. simpson's nicole brown simpson and ron goldman now inspiring the new tv series "the people versus o.j. simpson."

the fire started. investigators have not said yet what started the fire or said how much the damages cost. dubuque police say they've number of stolen items as part of a burglary investigation. they say they found stolen jewelry... u-s and foreign money... lawn care equipment... and cellphones and tablets. police are asking people to come forward to claim their items. they also have arrest warrants for 2 suspects they think were involved with t t thefts. and now here's your first alert forecast.

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series off bank robbebees where they were stealing puffers as a way to get to and from the robbery scene. >> reporter: on a cold morning a little shivering is better than a lot of stealing. >> that's when what they madee gloves for. >> now, one police chief in colorado tells me if he could keep people from leaving their puff he cars on the streete his city by 20%. lara. >> that's unbelievable. seems so logical. clayton, thank you so much. happening more and more. amy -- >> it happened to me in a parking garage.

doesn't make mistakes at 21 yeyes old yet mine followed me for the rest of my life and hit a utility pole going 70 miles per hour and next thing you know, i was in the hospital for over 2 1/2 months? and your career was over. >> yeah pretty much at that given moment. i tried to come back and but i couldn't do it at the same level i was at but my thing is accidents happen in life and i really think i'm better for it. >> y say in your book that that crash wasot ann accident. >> well, i've been living my life so differently at that point and i saw guys who have been playing professional sports kiss their@ wives and g on

. >> i'm a maniac and everyone on this stage is stupid, fat and ugly. >> now that we've gotten the donald trump portion out of the way -- >> he would nearby holding a two cable chapels aired it producing this split screen moment. >>> well, the mosquito-borne zika virus is spreading quickly. boston now reporting its firstst case. at least 31 people in 11 states have been diagnosed in all of those cases contracted outside the u.s. zika is linked to a wave of birth dedebruarys in brazil where babies have small heads. >>> a scare for this baby's faly in arizona. take a look at 4-month-old ryder. his mom took his picture last month which showed that white glow in his eye. at first she thought it was a problem with the camera but turns out it was cancer. ryder is being treated right here in new york and thankfully is expected toe fine. . >>> exactly ten years ago today our colleagues bob woodruff and

career was over. oh, but his life wasn't. and i'm here with former nba star and espn analyst jay williams, thanan you for being here. >> thanks for having me. >> i got to tell you i've been reading your book and cannot put it down. it is remarkable. what you've been through and warrant to go back to that eventful day.y. you didn't have on a helmet. >> nope. >> you didn't have a license to ride a motorcycle and you literally wrapped your bike around this pole. >> i did. i was 21 years old. i was a baby, you know, who doesn't make mistakes at 21 yeyes old yet mine followed me

ready and waiting for you in no baby not today >>> back now with superstar sia who just gave us an incredible -- why are you laughing that's true. no, you know how funny it is, just found out momomts ago that over 50 countries, close to 60 countries. we just heard that moments ago. so thank you. >> that is so amazing. >> the concept of this album if you don't know this is acting is these are all songs you've written for other artists, you're a terrific writer and have written so many hits. these were for rihanna and all these artists who didn't choose them? a couple of them i wrote and kept for myself and even one i took back actually because i liked it. >> which one is that. >> "space between." >> who was it supposed to be. >> rihanna and i asked if she didn't mind and she didn't.