What is wrong with the people in the United States of America?

GRAHAM, Wash. - A father apparently shot to death five of his children, ages 7 to 16, at their mobile home and then killed himself near a casino miles away, police said Saturday. 3 police Officers were killed in the eastern part of the USA. 14 people were killed in shootings in one building in Pennsylvania. Then last week many were killed in a nursing home. 4 police officers were killed in California two weeks ago. Is this the wonderful USA?