What do you think of a father who desires to murder his two adult twin sons for life insurance money ?

Reputed millionaire Richmond, Virginia real estate business owner has lost a lot money in 30 years due to gambling addiction and a greedy shopping addicted second wife. Is heading into retirement, and does not have enough cash as he would like to be comfortable to continue to support his ets, his lifestyle, his young adult grandsons and pay for retirement for his now 47 year old daughter who works for him in the office. He has a health issue of severe degenerative spine disease that will worsen so he cannot continue to earn his high income as real estate broker and home builder/business owner. He is the son of smuggler.He feels his twin sons lives are not worth much as they are socially and financially vulnerable. So, he feels he needs the life insurance money to be happy and support his most beloved family members because he said "I worked hard and I deserve it!. The other family members support his decision and will benefit, and all of them are using slander and sophisticated corruption tactics to reign in the smartest twin who is trying to defend himself and his mentally challenged identical twin brother. Political psychiatry has already been used to label the smart twin with severe mental illness because he has made accurate complaints about corruption tactics that have been used. Police have been consulted and believed this story was accurate; however was not enough evidence to make a case. What can be done?