What was the profession of the person injured in a riding accident?  Answer the above question based on the context below:  Anderson is a successful American hitman whose employer sends him to do a job in Argentina. His contacts inform him that his target is a former general who took part in Argentina's last military dictatorship. Following a meeting with one of the co-conspirators, Anderson hears music and is shown a tango studio. He is immediately entranced by the dancing and wants to learn more about it, which leads to his meeting with Manuela, a local tango dancer and instructor. Things are not as easy as they seem. Anderson learns that the assassination job will be delayed, due to his target sustaining an injury in a riding accident. A paranoid Anderson simultaneously rents a room in two different hotels. From the safety but close proximity of one hotel room, he witnesses police converge on the other hotel. Anderson will fulfill his obligation to do the job despite the obvious reality that there is a leak. In the meantime, Anderson begins to immerse himself in the world of the tango, while balancing his plans to carry out the hit. The conspirator Miguel is harshly interrogated by Buenos Aires police. Miguel can eventually breathe a sigh of relief when his conspirator within the Argentinian federal authorities shows up. Anderson eventually makes it out of Argentina safely.
general who took part in Argentina's last military dictatorship