"Police perimeters have been set up at both schools, canine units deployed and police intend to examine local surveillance cameras in an effort to determine how and when the shootings occurred."
Immigrants who bring their hatred with them from their native land, nurture and it in their adopted homeland.
My roomate was from Dublin, Ireland and an avid Irish Republican Army-IRA-supporter who believed in the total elimination of British from Ireland. He was joyous when the IRA launched attacks in Britain. The IRA colluded with the Nazi's during the Second World War supporting an effort to land German soldiers on the west coast of Ireland to concur the Irish and move across The Irish Sea and take Britain.
There was a religious irony in that the IRA was Catholic attempting to eliminate Protestant Northern Ireland.
Both Christian.
I see a direct correlation between my roommate and the rise in hatered across North America.
This sadness is not far from where we lived in California. So yes, to the question if people bring their hate and prejudice with them.