charles william "chuck" missler (may 28, 1934 – may 1, 2018) was an american author, evangelical christian, bible teacher, engineer, and former businessman. missler was born in illinois. he was the founder of the koinonia house ministry based in coeur d'alene, idaho. he helped create a monthly newsletter from the ministry and bible study tapes, hosted a radio show called "66/40", and spoke at conferences.