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 . Cole Sulser Rays Jersey .ca. Kerry, Just watched the shootout in the Coyotes/Leafs game and I have to ask, why was the James van Riemsdyk goal allowed to count? All of the video replays we were shown on TV were inconclusive about whether the puck had entirely crossed the line or not. Mike Zunino Jersey . He said Tuesday thats a big reason why he is now the new coach of the Tennessee Titans. Whisenhunt said he hit it off quickly with Ruston Webster when interviewing for the job Friday night. https://www.cheapraysonline.com/926i-avisail-garcia-jersey-rays.html . Tevez, who has had conflicts with coaches in the past, has not been called up since Sabella was named coach in 2011. Argentina boasts Lionel Messi, Gonzalo Higuain, Sergio Aguero, Ezequiel Lavezzi and Angel Di Maria. Colin Poche Jersey . -- Ty Montgomery had 290 all-purpose yards and two touchdowns, and fifth-ranked Stanford held on to beat No. Rays Jerseys 2019 . "We have always prided ourselves on the way we play defence. Having two big pieces back is going to be a key for us moving forward for years to come," said Knighthawks head coach Mike Hasen. Injury-plagued Brisbane youngster Jaden McGrath has left the Lions, saying he no longer has the desire to play AFL.The 20-year-old has been released from his contract which expired at the end of the 2018 season.In 2015, McGrath signed a two season extension with Brisbane.Barely a year later McGrath - from Kerang in country Victoria - said he had lost his motivation after a horror injury run.Its a difficult choice to make but I want to be honest with myself and with the club - and I just dont have the desire to continue at the elite level, said McGrath.Football is something I love and I want to get back to a place where I can enjoy the game again.Id like to thank my family and friends for alll their support, and the club for giving me an opportunity to have a crack at AFL footy.ddddddddddddMcGrath played the first three games of his debut 2015 AFL season before being diagnosed with a foot stress injury.He was sidelined for the rest of the year.McGrath still earned a contract extension last December but more injury setbacks limited him to just two second-tier NEAFL games this year.We really appreciate Jadens honesty and as a club we are committed to support him as he settles into life outside football, Lions football general manager David Noble said. ' ' '