Premise: Prinair Flight 191 was a Prinair (Puerto Rico International Airlines) flight from Luis Muñoz Marín International Airport in San Juan, Puerto Rico, to Mercedita Airport in Ponce, Puerto Rico. At approximately 11:15pm on 24 June 1972, the aircraft crashed while attempting to land at Mercedita Airport. Five people died in the accident. and the remaining people were injured.
Hypothesis: The remaining people who were injured passed away shortly after.