Tricky with just one data point. If we assume the rate of denials has dropped to zero (from a previous poster, again just a single data point), and that in time that rate will pick up again, we'll need to know what effect the next murder has, if the rate again drops to zero or hovers somewhere above it, then we should be able to come up with a reasonable estimate of how many denials a CEO is worth. The rate at which denials picks up again will in any case give a good initial estimate of that with no second murder needed, but more data will lead to greater accuracy.