HENDERSON, Nev. — Jack B. Johnson, the last president of the former Southern Baptist Convention (SBC) Radio and Television Commission (RTVC), died March 5 in Henderson, Nevada. He was 82. Johnson was RTVC’s president from 1990 to 1997 when the broadcast ministry became part of the North American Mission Board (NAMB) in an SBC restructuring. After NAMB’s formation, he served…