 The second sentence of this discourse appears to have two different readings. On one reading, it asserts that concerning the man who killed Alan last night, Michelle believes of that very man that he used a knife. This would be the case if, for example, Michelle knew the man who killed Alan, believed that he killed Alan and based on his well-known fondness of knives, believed he used this sort of weapon. But the second sentence has another reading on which it ascribes to Michelle the general belief to the effect that a man killed Alan with a knife last night. On this reading the sentence would be true if e.g., on the basis of conversations with personnel at the hospital and having no particular person in mind, Michelle believed that a man fatally stabbed Alan last night.