A Federal Bureau of Prisons worker at a high-security penitentiary in California died on Friday after coming into contact with an “unknown substance” while working in the mailroom. Marc ...

The employee was rushed to the hospital and later died. A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in ...

The mailroom supervisor at a federal prison in Atwater died Friday, as a result of exposure to mail saturated in an unknown substance. A second worker was ... for the U.S. Bureau of Prisons ...

A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in Atwater, California, according to a bureau spokesperson.