he has asperger's. thought, there's a story. >> reporter: irving posits darius' compulsion to be part of the subway system literally results from his having asperger's syndrome, often thought of as a form of autism. >> people on the spectrum, they like routine, they like rituals, they like schedules. and trains run on a schedule. >> when he's in that world of the subway, there is a kind of sense where, everything is going to be okay there. like he's kind of ended up in wonder land. >> reporter: or put another way, when i asked darius about a scene in the film where he's donning the uniform of a transit police officer from his own collection -- >> everything about the uniform has to match from head to toe. i guess i felt like maybe batman. >> batman? >> batman. >> what does batman do? >> he doesn't have the powers like superman or ice man or other people, he's just a regular man. batman always seemed to do good for people, and i felt that i did good for people too. >> reporter: yet even though darius kne

. >> diagnosed with asperger's, driven by unstoppable compulsion. instead of treatment he's in prison. is that where he belongs? >>> plus the fisher sisters. jolie and tricia lee reflecting on their beloved sister carrie fisher. >> we had the coolest big sister in the world. she was a bad-ass, gun-toting princess. >> the final moments at carrie's bedside and the special side of their sister that the public never knew. ♪ let's go >> and janet jackson embarking on the escapade of motherhood. giving birth to her first child at 50 years old with a very unique name. >>> first tonight the "nightline 5." >> looking for balance in your digestive system? try align probiotic. for nonstop sweet treat goodness hold on to your tiara kind of day. get 24/7 digestive support with align. now in kids' chewables. >>> beyond is a natural pet food that goes beyond assuming ingredients are safe to knowing they are. going beyond expectations. because our pets deserve it. beyond. natural pet food. >> and number one is coming up in just 60 seconds. >>> good evening and than

he's got epilepsy and asperger's.

. >> diagnosed with asperger's, driven by unstoppable compulsion.er. >> we had the coolest big sister in the world. she was a bad-ass, gun-toting princess. >> the final moments at carrie's bedside and the special side of their sister that the public never knew.

with dementia or alzheimer's, young children who have or are on the spectrum who have autism or aspergers. he is actually threatening the very people, u.s. citizens, californians, and americans. and when he threatens california, he actually threatens the economy of the united states of america because we're 13% overall of the gdp of the u.s. >> mr. secretary, this notion of mexico paying for the wall was always childish. now that is being admitted by donald trump and paul ryan. they're saying no, no, no, we'll pay for it. and now they're getting into this game of there are some creative ways in which mexico can then reimburse us for the wall. ways that are so creative they can't even describe them. >> well, he is trying to have it every which way. and he will have some explanation eventually that exonerates him from having said that. but i want to go to what the senator was saying. because the rule that the senator will exploit to say that this is unconstitutional is the 10th amendment. the 10th amendment, beloved of conservatives. bob dole used to carry a copy of the 10th amendment in hi