Impairment suspected as a factor in fatal accident in Bossier City, authorities say Killed in wreck on I-20 at Airline Drive was a Shreveport man who was driving a pickup Joshua Broussard, 29, of Shreveport, was driving an early 2000s model Mazda pickup east on Interstate 20 at Airline Drive in Bossier City when the truck struck a guardrail, causing it to overturn, at 5:24 p.m. Sunday, April 25. Authorities say he was pronounced dead at the scene. By Curtis Heyen | April 26, 2021 at 9:52 PM CDT - Updated April 26 at 10:23 PM BOSSIER CITY, La. (KSLA) — Impairment is suspected as a factor in a crash on Interstate 20 that claimed a Shreveport man’s life, authorities say.