Shortly after he was electrocuted a second time, county police say Johnson lost consciousness and was later pronounced dead at a hospital.
Johnson was an accomplished architect and religious man, his brother said, not the type of person who would challenge police and wind up dead after receiving a shock from a taser gun.
For Carl Johnson's brother, the circumstances don't add up.
"The way this is being described is completely out of character ... unprecedented," said Gene Johnson, 42, as he traveled to a Georgia airport to come to Baltimore. "He never had an ounce of trouble."