The number of murders solved each year is only about half of the number of crimes committed each year, according to an analysis of FBI data conducted by The Marshall Project. And at the same time, the country is experiencing an alarming increase in homicides.

FILE - In this July 9, 2020, file photo, a correctional officer closes the main gate at San Quentin State Prison in San Quentin, Calif. In prisons around the country, COVID-19 outbreaks have followed transfers of prisoners or prison workers. But on Oct. 28, corrections officials transferred nine prisoners to Kinross from Marquette Branch Prison, several hours west, where COVID-19 was running rampant. In prisons around the country, COVID-19 outbreaks have followed transfers of prisoners or prison workers. State officials said they have followed proper infection-control protocols.