"Mompsie feels less terrible than she might, thinking you did it," he quotes Loeb as saying, "and I'm not going to take that shred of comfort away from her."[36] While most observers believed that Loeb did indeed strike the fatal blows,[6] some circumstantial evidence—including testimony from eyewitness Carl Ulvigh, who said he saw Loeb driving and Leopold in the back seat minutes before the kidnapping—suggested that Leopold could have been the killer.[37]