A little questions about Los Angeles (to buy, university, to live in)

[H.N.M]

Tell me, please, how there, in Los Angeles it is possible to live in general, and that speak to criminality much in Los Angeles, after eight evenings on street it is impossible to leave, at me such impression has developed that in Los Angeles dangerously to live or I am mistaken?

[H.N.M]

I heard recently that one moron left the bus and has shot of all who stood and the bus at a stop waited. It was in Los Angeles. Then still the case was, one student has shot the fellow students Because of that have deducted him from university and in general in the USA it is possible to buy the weapon easily
In general in Los Angeles a lot of criminality