That statement is true i'm not sure what you're asking though
Answer:
Mrs. Stevenson has to be killed by her husband's hitman because she is unhealthy. The hitman was George he is the murderer he takes his orders from the first man. He has to take care of his wife all the time so he is disgusted with it.
kamsahamnida have a great day
Snapes style is a little bit more test book and rough whilst lockhart is more flamboyant and hands on