The shooter was 24-year-old Sirhan Sirhan .

The shooter was 24-year-old Sirhan Sirhan .

In 1969 , Sirhan was convicted Legal_rulings of murdering Killing the senator and sentenced Legal_rulings to death Death .

Much like his brother 's assassination Killing , Robert Kennedy 's assassination Killing has led to Causation a number of conspiracy theories ; to date , no credible evidence has emerged Coming_to_be that Sirhan was not the shooter , or that he did n't act alone .