darrion aguilar has armed with a shotgun and explosives.ng a possible outbreak of the highly contagious norovirus. more than 300 have been sickened. the ship ended its 10-day cruise early due to the outbreak. >>> due to mature subject matter, viewer discretion is advised. ♪ daddy when are you coming home we don't want to spend another christmas with you gone ♪ ♪ mama cries most every night she's always feeling blue daddy we don't want to spend another christmas without you ♪ >> san quentin's h-unit houses level one and two inmates, many of whom are parole violators serving short sentences. >> down here is a little more laid-back atmosphere with the inmates but at any time, they could turn on you. before, i was working in donner section. >> when we first met c.o. cavagnolo, he dealt with high level inmates in level one desegregation. now he works in a dorm setting. >> i have 200 inmates and it's only me. it's like going totally other side of the spectrum. everything down here is observation, just watching, listening, getting the feel for the

police identified the gunman as 19-year-old darrion aguilar. police gave chilling details about what happened. erin, what more have we learned about what happened and what may have happened leading up to that shooting? >> fred, investigators have determined some logistical details, like what the shooter did when he got here and how he got to the mall. they are still trying to figure out why. the gunman now identified in saturday's terrifying shooting at this mall in columbia, maryland. >> darion aguilar is the shooter. >> police still aren't talking about a possible motive, though they say 19-year-old aguilar lived in the same college park neighborhood as one of the victims, 21-year-old benlolo. >> we haven't been able to verify a relationship between him and either victim. we can't establish there is one. we can't establish there is not one. that is an open question. >> surveillance videos, police say, reveal that aguilar arrived by taxi at this upper-level mall entrance around 10:15 saturday morning walking by a children's carousel and carryi

. >>> police found the journal of the gunman that shows darrion aguilar was unhappy but does not reveal between the 19-year-old and the two people he killed. >>> a texas hospital made a court order and took a pregnant woman off life support today. she had been considered brain dead for two months. the hospital had been keeping her alive in accordance with the texas law but against her family's wishes. >>> health officials have boarded royal caribbean's "explorer of the seize." they are investigating why hundreds of passengers and crew members got sick. they are suffering from symptoms including vomiting and diarrhea. >>> those are the headlines on this sunday. access presents "money for nothing: inside the federal reserve" is next. find us online at al jazeera america.com and tuesday night, at 6:00 p.m. have a great night. >> >> the dollar is the most remarkable achievement in the history of money. think of it. this piece of paper cost nothing to produce, there's nothing behind it except the goodwill of ben bernanke, and the u.s. congress. this

investigators say darrion marcus aguilar walked into the store saturday morning, opened fire killing employees before turning the gun on himself. he also had explosives in a backpack. still not known whether he had any prior connections to the victim. the motive unclear, but investigators say aguilar kept a journal and expressed general unhappiness. >>> b.a.r.t. service is back to normal this morning after a challenging rescue. a woman stuck beneath the train at the embark embarcadero station. crews were able to remove her and take her to the hospital. trains ran on a single track for several hours. >>> antioch police are looking for a man who shot another man in the jack in the box apartment. a man was sitting in his minivan when another man walked up and shot hum several times. at last report, the man shot was in surgery. >>> san jose university warning people to be cautious after two women were groped. the first incident happened outside the event center just before 7 on saturday night. police believe the same man on a bike groped another won about 2 1/2 hours later near hoover re

. >>> police identify the gunman in the maryland mall shooting yesterday as 19-year-old darrion marcus aguilar. he shoot two workers before killing himself. there's no word on a motive yet or if he had any ties to the victims. >>> it's a chilly start to the day across the northeast, and we don't like the cold. i'm telling you, it's going to be very cold over the next couple of days. i'm telling you that cold air pushing in out of the north central plains across portions of north dakota where we have blizzard warnings because of the wind. the wind will crank up the next couple of hours. we're talking wind gusts up to 50 miles per hour. that's going to blow some of the snow around. alberta clipper here swinging across the ohio valley, and it's on its way to the i-95 corridor. if you trafr there, take it easy out there today. snow pushes into western portions of pennsylvania into upstate new york in the next couple of hours. we'll see that snow push through the new york state throughway, so be careful on the roads. winds blowing around here around 14 miles per hour in cleveland, but when you fact