When people say "Good Samaritan" it alludes to a parable told by Jesus in Luke 10:25-37 and Mathew 25:31-46. The similarity is that in both cases a Jew walks through a dangerous area gets violently assaulted and ends up being helped by a kind non-Jew (albeit in the present place its not certain if the helper was not Jewish).
Being that the term "Good Samaritan" is used now in a broader sense to mean somebody trying to help, I thought it was oddly appropriate that in this particular case some of the particulars matched the original parable that had inspired the term.