It's like one of those locked-room puzzles. A helpless cripple in a wheelchair totally disappears - only his wheelchair is still there. And there wasn't time for his wife to murder him and dispose of the body before the police came charging in. She's not a very big blonde, she wouldn't have had the strength to carry him anywhere, dead or alive. He was six feet, a hundred and eighty. There's just one answer, it hits you in the eye. The boyfriend. Only one hasn't turned up.
