Prosecutors say Derrick Macon, age 22, stalked women as they walked down Rochester streets, strangled them, rendering them unconscious, and would then rape them.

A man was sentenced in Rochester on Friday for sexually assaulting three women over the span of four years.

Prosecutors say Derrick Macon, age 22, stalked women as they walked down city streets, strangled them -- rendering them unconscious -- and would then rape them.

Macon was convicted in three cases between June 2012 and August 2016. Authorities used DNA to connect Macon to the crimes.

"This sentence is a tribute to the bravery of the victims in following this case through to the end, and it would not have been possible without the excellent work that was done by the Rochester Police Department and the Monroe County Crime Lab,” said Assistant District Attorney Elizabeth Buckley. "Today, our entire community is safer because Derrick Macon will be spending the majority of his life behind bars."