A suspicious crime

What would you think if you heard that a man was found seriously hurt in bed and that his wife did nothing to help him?

Something strange happened one night. Mr. Sanchez was stabbed in his bed. He passed away some hours after the police came to investigate..

Mr. and Mrs. Sanchez had been married for five years. they had a two years old son,and Mrs. Sanchez was pregnant again.Mr. Sanchez worked as a policeman.

The day before the murder, while on duty, Mr. Sanchez had an argument with a man. The angry man had shouted at Mr. Sanchez, "I'm going to kill you."

The police, however, arrested Mrs. Sanchez. The police thought that she acted suspiciously because she didn't do anything to help her husband. She told the police that she had been in the bathroom when she heard some strange noise. The police asked her why she didn't come out of the bathroom. She answered that she was scared.

There is a lot of evidence that points towardMrs. Sanchez. One of the bedroom windows was broken, but the police said it had been broken from inside the room.The police think she is guilty because some wet clothes were found in the Sanchez house .The police suspect that Mrs. Sanchez got some blood on her clothes when she stabbed her husband and that she had washed the clothes immediately. .

Now she is not in jail. she is on bail and she lives with her parents. She can't leave the city untill she can prove that she is innocent or until the police find another suspect.

Who do you think killed Mr. Sanchez?.