The security in the building was lacklustre, they must've been very confident that nobody would ever go against them.
They entered the building with ease, walking slowly as to not alert the people inside. They didn't know how many there were so the element of surprise was something they much preferred.
They should've been working tonight on another water pump but with this problem at their hands they could not leave the house unattended, leave it open for attacks from these low lifes. So they decided to give themselves a day off.
This was their last one anyway, they were ways ahead of schedule as the crowning ceremony was still days away which was when they were supposed to be done.
Ryan was breathing slowly with a single thing in mind, kill the man who made his wife and daughter like that. He wasn't thinking about anything else, seeing Lucy break down in his arms affected him more than he let on.