BROOMFIELD, Colo. -- It was a somber start to homecoming week Monday at a suburban Denver high school after a bus carrying football players and coaches crashed at the airport, killing the driver and injuring 18 passengers, some critically.The bus driver was speeding as she veered off a roadway and slammed into a concrete pillar Sunday afternoon at Denver International Airport after picking up members of the Legacy High School football squad.The students were returning from a football game in California, and the vehicle was circling back to the airport for an unknown reason when it crashed.Detectives spent hours interviewing witnesses, including those aboard the bus, but no one could explain why the driver headed back toward the terminal before driving directly into the pillar, Denver police Sgt. Mike Farr said.Theres a big mystery there, he said.The driver was traveling 30 to 40 mph (48 to 64 kmh), too fast for that stretch of roadway, Farr said. Tire tracks show she made no attempt to avoid the pillar.Police were investigating the possibility she suffered a medical condition. They were also inspecting the bus for mechanical problems.Theres no evidence the driver crashed intentionally, Farr said, but certainly its one of the things we have to be open to.The bus carried 28 students and four adults, airport spokeswoman Heath Montgomery said.Fifteen students were taken to hospitals with minor injuries as a precaution, school officials said. Three coaches remained hospitalized Monday with serious injuries.Authorities identified the driver as 43-year-old Kari Chopper.Two victims at Denver Health Medical Center were in critical condition, two in serious condition and one in fair condition.The crash stunned students at the school in Broomfield, north of Denver. A crisis team was there to help.Junior Kevin Segura was relieved to learn that his friend, a football player, was OK.He was released from the hospital last night. Hes just really traumatized right now, Segura said. Its such a tragic event.School officials said some of this weeks homecoming events were being postponed, including a game planned for Monday evening.The Legacy High team had played a game Friday against Chino Hills High School in suburban Los Angeles.A Monday college spirit day was modified into a Legacy day in support of the football team, senior Emily Stockhus said.Students are trying to use homecoming week to work together as a team, school to build a really strong team together, Stockhus said.---Sadie Gurman can be reached on Twitter at http://www.twitter.com/sgurman . Yeezy Schuhe Deutschland . Paul Pierce couldnt believe he missed at the end. Young scored a season-high 26 points to spark a huge effort from the leagues most productive bench, and Los Angeles beat the Brooklyn Nets 99-94 on Wednesday night after blowing a 27-point lead. Ultra Boost Schuhe Sale . President of baseball operations Larry Beinfest was fired Friday after 12 years with the Marlins. The move came as the team neared the end of its third consecutive last-place season in the NL East. http://www.yeezyschuhe.de/nmd-schuhe-deutschland/nmd-r1-kaufen.html .com) - The women will also have a new champion at the Australian Open. Fake Yeezy Kaufen . Note: The Calgary Flames announced Tuesday that Sean Monahan would not be made available to Canadas World Junior team. Yeezy Schuhe Großhandel .C. -- Kemba Walker and the Charlotte Bobcats got off to a fast start, and the Sacramento Kings were never quite able to catch up.One year after originally scheduled, the Winnipeg Blue Bombers will officially open Investors Group Field this evening, taking on the Montreal Alouettes in the first regular season game at the new stadium in Winnipeg. Watch the game live on TSN starting at 9pm et/6pm pt. Investors Group Field will be in the spotlight, as the Bombers finally vacate the 60-year-old Canad Inns Stadium for their plush new home. The opening of Investors Group Field is just one of many storylines for the game that kicks off the 2013 CFL campaign. The Alouettes begin the Dan Hawkins era, as the former NCAA coach takes over for Marc Trestman, who is now head coach of the NFLs Chicago Bears. Hawkins has been described as close to the polar opposite of Trestman, so it will be interesting to see how his personality jives with the veteeran Montreal team.dddddddddddd One thing that is sure to lessen Hawkins Canadian football learning curve is quarterback Anthony Calvillo. The 40-year-old veteran is entering his 20th season in the league and 16th season behind centre in Montreal. Calvillos showing no signs of slowing down either; he threw for over 5,000 yards last season, the seventh time in his career hes done that. And taking snaps on the other side of the field will be Buck Pierce. Pierces health heading into the season is another storyline in Winnipeg but the 31-year-old said hes feeling strong for 2013. The Als will be without running backs Brandon Whitaker and Jerome Messam, both on the one-game injury list, while the Bombers will be short DB Johnny Sears Jr. and SB Kito Poblah who are also on the one-game injury list. ' ' '