Barring any policy exclusions to the contrary, the driver would be held responsible (assuming they were At Fault for the accident), and their Bodily Injury Coverage, (and perhaps medpay and pip, and some others) would cover this sensless death, up to the policy limit. More accident/loss details and I could perhaps assist you more.
In the UK all drivers must have in place a valid policy of motor insurance which will cover injury or death to third parties as well as damage to third party vehicles. The motor insurance policy will pay for the fatality caused here, but terms of the insurance policy might allow the money to be recouped from the driver depending on the clause relating to excessive alcohol consumption. The driver would also face a criminal conviction. To read all about the different types of motor vehicle insurance see the related link entitled "accident car insurance" and to see the claims process following a fatal accident see the related link entitled "fatal accident".