Question: On a late Sunday evening, April was found dead in her apartment. The police questioned the three suspects. Melanie: "I was at the mall shopping." Delancey: "I was working at the post office." John: "When I came back by 2 PM, I found her dead. Who killed April and explain the reason.
Answer: Two people. John, because 2 PM isn't the evening and Delancey because post offices don't work on Sundays.