Parse this person name:

Leonard Killer, 1845-1915, flourished 1864-1887
user
first_name: Leonard
last_name: Killer
middle_names: []
temporal:
- start: 1845
  end: 1915
  type: life_span
- start: 1864
  end: 1887
  type: flourished
titles: []
extra_info: []
assistant