Law enforcement sources tell TMZ Juan-Carlos Cruz was allegedly involved in a Shakespearean plot to kill his wife and then kill himself — and it's all over their inability to have babies. Sources say the Santa Monica Police Department and the L.A. County District Attorney are fully aware 47-year-old Jennifer Campbell has been despondent for years over her infertility and has spoken openly to friends that she wanted to end her life. But Campbell is a deeply religious, practicing Catholic and the church views suicide as a mortal sin. Our law enforcement sources say the information police and prosecutors have "is absolutely clear" — Cruz was trying to honor his wife's wishes by ending her life. He then planned on killing himself. As TMZ first reported, Cruz allegedly approached 3 homeless men in Santa Monica to kill Jennifer. Click here for more information. Tune in to TMZ on TV weekdays Monday through Friday at 9:30pm following FOX News Baton Rouge on FOX44.