Francis McReary

Francis or Derrick — one McReary brother has to die. Niko picks his side, climbs to a sniper roost above the Memorial Park, and pulls the trigger on the chosen target.
Blood Brothers is a mission in given to protagonist Niko Bellic by LCPD Deputy Police Commissioner Francis McReary from outside the public park in Castle Gardens, Algonquin, Liberty City.
Francis sends Niko a text message telling him to meet him at Castle Garden City Park in Castle Garden City, Algonquin. Francis pulls up in a Landstalker and admonishes Niko for not letting him know that he has been working with his drug-addled brother, Derrick. Francis explains that Derrick intends to talk to a journalist about their family and Francis' corruption, which would put his career in the police force into jeopardy. Thus, Francis orders Niko to murder Derrick.
Francis is to meet Derrick at Lancet Courtyard Park in Lancet to give Niko an opportunity to kill him. Later, Derrick contacts Niko to tell him about the meeting and voices his fear that Francis wants him dead. He asks Niko to go to the meeting and kill Francis. For the second time, Niko must choose which one of the two that he will kill.