Absolutely true...nor does it lower the killer's likelihood. Notice Paul, who relished and participated in the murder of innocent believers. Notice David, who stealthily sent Uriah to his absolute death. The point is, sin is sin and we are all infected with the disease, we are all worthy of being excluded. Some, however, God will decide after the counsel of His will to rescue...Romans 9. Being rescued alters the rest of your life, but it is not contingent upon the man's life up to that point.
I was indirectly referring to those who feel they are assured a place in paradise by their murderous martyrdom.