UPDATE: Authorities say the teen killed in a weekend crash near Madison had recently graduated from high school where he played football.
Eighteen-year-old Tavian Shaw was a passenger in a car that rear-ended a semi on Highway 34 Saturday. A teammate at Washington High School in Sioux Falls was behind the wheel.
The State Patrol says 19-year-old Tyler Milliron was seriously injured in the crash. Shaw and Milliron graduated in May.
Officials have released the name of a man killed in a two-vehicle accident near Madison.
Eighteen-year-old Tavian Shaw of Sioux Falls died in Saturday's crash, according to the South Dakota Department of Public Safety.
Troopers say Shaw was a passenger in a car that rear-ended a semi on Highway 34.
Authorities say Shaw was not wearing a seat belt, and was taken to the Madison hospital, where he was pronounced dead.
The driver of the car, a 19-year-old Sioux Falls man, was also hurt in the crash.
The 59-year-old man driving the semi and his 59-year-old female passenger were both wearing seat belts, and were not hurt. Both are from Dell Rapids.
The South Dakota Highway Patrol is investigating the crash.