As a person with a family and kids, I can't imagine renting out a room to a single guy. I just wouldn't feel safe. This makes me certain I'm right. I know they knew the guy's family back home, and he had mental issues. I feel terrible for this family, they should have never trusted that man in their home.
Sadly no justice will be served, as the killer will probably just be deported back to Sri Lanka and be set free