Given the question: Facts: - conviction: first-degree murder - death place: santa barbara , costa rica - sentence: 32 years - victims: 4 - death date: 11 june 1984 - country: costa rica - birth date: 21 november 1908 - name: beltran cortes carvajal - apprehended: august 23 , 1938 - image: beltran cortes carvajal.jpg - birth place: santa barbara , costa rica - cause: prostate cancer Based on these bullet points, write a short biography describing the life of beltran cortes .
The answer is:
beltran dalay cortes carvajal -lrb- 21 november 1908 - 11 june 1984 -rrb- was a convicted costa rican murderer , mostly known for the murders of the physicians ricardo moreno canas and carlos echandi .he is one of the most famous former prisoners of san lucas island .