Exactly. We don't know who her good friends were, but it would be a bit of a shocker that a 29 year old pilot had no friends.
Quite often, he who lives with mom after he turns 30 years old also falls on the sword and cares for mom because someone has to. Fact is, he is over 30 years of age and has not lived independently even though a woman pregnant with his child moved nearby, got a local job and bought a home. For some reason, even though all this was in place, they never lived together. How did that end with murder?