Many vicious cases of young people killing people with umbrellas have occurred in extremely bad weather conditions. It's another stormy night, is something going to happen? Inspector Robert thought so

Young people who kill people with umbrellas

Many vicious cases occur under extremely bad weather conditions. It's another stormy night, is something going to happen? Inspector Robert thought so. Within minutes, the phone on his desk was ringing in a hurry—a murder had taken place in a local bar. Upon receiving the report, Inspector Robert and his men immediately drove to the scene. According to witnesses at the scene, the location of the deceased was in a corner of the wall, relatively hidden, and everyone was drinking at the time, so they did not pay much attention. However, it has been heard that the deceased had an argument with another person before he died. Then another man suddenly ran out, and the deceased was already lying on the table. The waiter of the bar saw the deceased lying on the table for a long time and did not get up, and thought he was drunk, so he ran to call him, but found that he had died of injuries, and the waiter of the bar immediately called the police. After examining the body of the deceased, the police found that the deceased had been stabbed to death with an umbrella.

When the killer was seen fleeing east of the city, Inspector Robert immediately sent police officers to pursue him. Finally, half an hour later, a young man suspected of being a criminal was caught in front of a convenience store in the east of the city. Inspector Robert immediately questioned the young man. The young man told Inspector Robert that he had not been to the bar today, so he was not the murderer the police were looking for. Inspector Robert found the young man wet all over his body, but the umbrella was dry, and the dry was Inspector Robert asked.

"What is that umbrella you're holding in your hand for?"

The young man replied, "It is raining today, and of course I am going to take an umbrella to cover the rain." Inspector Robert said, "Yes, it is raining heavily tonight, but you did not use your umbrella to cover the rain, but to kill people with it." "

But the young man still did not admit that he was the murderer, so Inspector Robert asked him questions again, and the young man could no longer answer the question, so he had to confess to the police. What question did Inspector Robert ask him so that he could obediently confess his guilt?