Question

(alert,,tough riddle,,,if you love it you are a genius)

Police found a women dead in her house in the morning at 9 am. Her body was found by the usual milkman who always supplied her with milk... around 8 am he went to supply the milk but he found no response at last when he peeked through the window he saw her body laying on the floor... Her husband was called and was told to reach at the spot....after 4 pm he arrived he said he was late because he had a meeting. But as soon he came the police arrested him..... WHY

Answer 1

He was told to reach at the spot, but he wasn't told where to reach.
He reached at his house which means that he knew the case.