CLAYTON • A Hazelwood man who was speeding more than twice the limit when he rear-ended and killed a bicyclist has been given 120 days of “shock time” in prison.

William D. Goad, 43, of the first block of Ville Donna Court, pleaded guilty Friday of involuntary manslaughter as part of an agreement with prosecutors. Circuit Judge David Lee Vincent III sentenced Goad in the crash that killed Duane Johnson, 44, on Jan. 16, 2015, in Bridgeton.

Goad received a seven-year suspended prison sentence pending his successful completion of a 120-day prison term that includes drug and alcohol treatment.

Officials said investigators found that Goad was driving a pickup at 68 mph in a 30 mph zone as the sun was setting when he struck Johnson on Gallatin Lane.

Goad remained at the crash scene while police investigated. He had not been drinking. Goad has a burglary conviction from 1994.

Johnson lived in the 3800 block of Brittany Circle in Bridgeton. His relatives said Friday that he was a Soldan High School graduate, attended Culver-Stockton College in Canton, Mo., and served in the Army.