What type of details about beltrán cortés  can be gathered from the following bio?  Bio: beltrán dalay cortés 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 cañas and carlos echandi . he is one of the most famous former prisoners of san lucas island .
- conviction - death place - sentence - victims - death date - country - birth date - name - apprehended - image - birth place - cause