Singer/guitarist Chuck Schuldiner was a musical genius and an important part in the history of metal. His band Death began as a mixture of punk, speed metal and horror/gore imagery and developed their style into more complex and prog metal-y sound over the years.
Death is considered to be the pioneers and "inventers" of death metal and has influenced many bands, like my all-time favourite Mokoma:
Unfortunately Schuldiner passed away in 2001. He was 33 years old.
He will always be missed just like other great ones, like Cliff Burton, Dimebag Darrell and Ronnie James Dio for example.