What key details about boris belinsky  can be extracted from the following bio?  Bio: boris belinsky -lrb- born 28 march 1885 , date of death unknown -rrb- was a russian sports shooter . he competed in three events at the 1912 summer olympics .
- sport is sports shooting- birth date is 28 march 1885- name is boris belinsky- birth place is tulchyn , russian empire