Blacks Are About Seven Times More Likely To Murder Someone Than Whites

SEE HERE  One of the symptoms of the decline of the black community is their black on black murder rate.  Violence is usually wrong at least on the part of one of the parties.  Murder is about as violent as it gets.  So how come that the black community commits murders out of all proportion to their representation in the population? 
African-Americans are six times as likely as white Americans to die at the hands of a murderer, and roughly seven times as likely to murder someone.