Are the mandatory minimum life sentence provisions of Virginia Code §§ 18.2-61(B)(2) and 18.2-67.2(B)(2) unconstitutional as constituting Cruel and Unusual Punishment prohibited by the Eighth Amendment?

This Court has ruled that a criminal sentence must be proportionate to the crime for which the defendant has been convicted . The question presented is: Are t he mandatory minimum life sentence provision s of Virginia Code § § 18.2-61(B)(2) and 18.2 -67.2(B)(2) unconstitutional as constituting Cruel and U nusua l Punishment prohibited by the Eighth Amendment to the Constitution of the United States, making the mandatory minimum sentence of two life sentences plus 60 years plus 12 months imposed upon Petitioner in this case unconstitutionally disproportionate to the particular crimes for which he was convicted and unconstitutional .