Question: What is the date of death of the composer of film Vaachalam?
Sentence (from "Johnson (composer)"): Johnson (26 March 1953 – 18 August 2011) was an Indian film score composer and music director who has given music to some of the most important motion pictures of Malayalam cinema, including those for "KoodevideNamukku Parkkan Munthiri ThoppukalOru Minnaminunginte
Relevant evidence: Yes