Aja's Links
Aja trusts him and relies on Murphy for a lot of the more action oriented activities, while doing the tech oriented tasks that go over his head. They've known each other for a long time and work well together, they both like each other though don't often show it, Aja is also one of the only people able to read his moods given his very stoic personality
Murphy views Aja as a core part of his team and appreciates their skills. They are one of the few people from his original group left and one of the rare people he trusts, he is used to working with them and even though he doesn't show it he views them as a good friend