We're going to begin with an explosive trial in albuquerque, where a former police officer is charged with killing his wife. Reporter: Levi chavez sobbed as jurors heard the 911 call, the former... See More
We're going to begin with an explosive trial in albuquerque, where a former police officer is charged with killing his wife. Reporter: Levi chavez sobbed as jurors heard the 911 call, the former prosecutor made after police say he killed his wife, and then committed suicide. Where did she shoot herself at? Reporter: Chavez was working as an albuquerque police officer in 2007, when he allegedly shot his wife, tara, in bed, with his police revolver. He puts the gun he had with him, into tara's mouth. And pulled the trigger. Reporter: What's more, prosecutors say he used his police training to cover up the crime. Like refusing to touch his wife's body. They say, so his fingerprints wouldn't befound. Can you touch her? Tell me if she feels good. I can't look at her. You can't? No, please. Reporter: Detectives say chavez wanted his wife dead because she threatened to reveal her belief he staged another crime. The theft of their truck to collect insurance money. He was never charged with that. You're not going to be able to find him guilty beyond a reasonable doubt. Reporter: The defense claims chavez killed herself, depressed about her marriage. They say she was having an affair with this man, an another albuquerque cop and her husband's best man. She wanted somebody to love her. Reporter: There's more. Levi chavez was sleeping with several women, including this one, that is also a police officer. This whole thing is so disgusting and a disgrace. Reporter: That mistress is also levy chavez's alibi witness, who says he was with her the night his wife was shot. Tuesday, the jury heard from another of his lovers. Another police officer. Prosecutors could wrap up their case by the end of the week. And chavez's defense attorney says his client may take the stand. For "good morning america," ryan owens, abc news, los angeles.
This transcript has been automatically generated and may not be 100% accurate.