Take the following as truth: On the previous day, the prisoner had purchased strychnine at the village chemist's shop, wearing a disguise by means of which he hoped to throw the onus of the crime upon another man ”to wit, Mrs. Inglethorp's husband, of whom he had been bitterly jealous. 
Then the following statement: "The prisoner used money he stole from an old lady to buy the strychnine." is true, false, or inconclusive?