He had been making progress in building Democratic support for his nomination when he was assassinated in Los Angeles on June 5 , 1968 .
Kennedy 's campaign was especially active in Indiana , Nebraska , Oregon , South Dakota , California , and Washington , D.C. .
Kennedy had been making progress in building Democratic support for Kennedy 's nomination when he was assassinated in Los Angeles on June 5 , 1968 .
Kennedy 's campaign was especially active in Indiana , Nebraska , Oregon , South Dakota , California , and Washington , D.C. .