On December 3, 1979, eleven fans (Peter D. Bowes, 18; Teva R. Ladd, 27; David J. Heck, 19; Connie S. Burns, 18; James T. Warmoth, 21; Bryan J. Wagner, 17; Karen L. Morrison, 15; Jacqueline L. Eckerle, 15; Walter H. Adams, Jr., 22; Stephen M. Preston, 19; Phillip K. Snyder, 20) were killed by compressive asphyxia and several dozen others injured in the rush for seating at the opening of a sold-out rock concert of 18,348 (3,578 reserved seats (sections 111 - 118), 14,770 general admission seats) people by the English rock band The Who. The concert was using "festival seating", (also known as "general seating"), where the seats are available on a first come-first served basis. When the waiting fans outside the Coliseum heard the band performing a late sound check, they thought that the concert was beginning and tried to rush into the still-closed doors. Some at the front of the crowd were trampled as those pushing from behind were unaware that the doors were still closed. Only a few doors were in operation that night, and there are reports that management did not open more doors due to union restrictions and the concern of people sneaking past the ticket turnstiles.