LAKEWOOD, Colo. (KDVR) -- The driver of a semi-truck that caused a 28-vehicle crash on Interstate 70 last week was formally charged with four counts of vehicular homicide on Friday.
23-year-old Rogel Lazaro Aguilera-Mederos, from Houston, is accused of driving the truck that killed four people in the crash that involved 24 cars and four semitrailers.
He was also charged with six counts of first degree assault; and 24 counts of attempted first degree assault.
Aguilera-Mederos will be formally advised of his charges Friday morning at 10 a.m.
According to an arrest affidavit, Aguilera-Mederos told investigators that the brakes on the semi failed before the crash and that he was going more than 80 mph at the time of the crash.
Aguilera-Mederos appeared before a judge on Saturday morning for his first advisement where his bond was set at $400,000.
He was taken into custody following the crash on multiple counts of vehicular homicide.