DNA profiling
Joseph James DeAngelo, 72, was arrested in connection with the string of crimes on Tuesday.
The award was described as "bittersweet" by his attorney.
I wasn't prepared for a whole range of new emotions too complex to fit in a pie chart.
WHAT'S HAPPENING
Police found Bernstein's body, which had been stabbed over 20 times, in a park in California last week.
Alan Robinson and Walter Macfarlane met about 60 years ago.
"Our pain was not acknowledged," one of the victims said.
"You can never for sure prove that there is nothing out there."
Sales of the DNA kit increased by 700 percent in just one day.