At least eight people are dead after a crowd surge during the sold-out Astroworld music festival in Houston on Friday, the city's fire chief said. Seventeen people were transported to the hospital after the crush, and 11 who were taken by ambulance were in cardiac arrest, Houston officials said. In all, more than 300 people were treated throughout the event Friday at an on-site field hospital. Around 9:15 p.m. local time (10:15 p.m. ET) "the crowd began to compress toward the front of the stage," Fire Chief Samuel Peña said at a news conference early Saturday. "That caused some panic,...