Character mistake: The police radio identifies the fugitives' car as a 1958 Cadillac, but it is a 1962.
Character mistake: After Fred wakes up and spots Mrs. Collingwood, he comments about how she's up late. Yet the sun has been up long enough for her and her husband to find and bring back Mari's body.
Answer: She leaves him to bleed to death, which, without prompt medical attention, he surely will.