[fieldmarshaldj]

"More people have been shot to death this month than any month since August 1972, when 45 people were killed."

There's about 600,000 people in Baltimore today. In 1972, there was 900,000. Which means the murder rate is roughly 33% higher than in 1972.

[MediaMole]

Add to that the improvement in emergency medicine between 1972 and 2015. Many people who live today would have died in 1972.