One man was killed and three people were severely injured in a two-car collision on highway 20 yesterday morning.

Moyer Quick, 65 of South Sioux City was traveling two miles east of Sioux City when the vehicle he was driving collided with a truck driving by 17-year-old Randy Radin of Sioux City.

Iowa Highway Patrolman Patrick Stewart reported both vehicles were proceeding in westbound direction on the highway when Quick attempted to pass the Radin vehicle. Quick’s rear-end struck Radin’s vehicle as he completed the pass and both vehicles entered the ditch; Quick’s vehicle rolled once. Autopsy results show Moyer Quick suffered from a heart attack which is probable cause of the accident; he was pronounced dead.

The survivors were transported by ambulance to Marian Health Center. Passengers in Quick’s vehicle were his wife Dorothy Quick, 61 also of South Sioux City and Dorthy’s sister, Maxine Steuerwald, 43 of Lawton.

Dorothy Quick is reported in good condition; Maxine fair condition; and Radin is in critical condition, suffering a fractured skull and internal injuries. Dorothy Quick has been released and Steuerwald is scheduled to be released. The road conditions are clear and dry with cloudy skies. The accident remains under investigation.