An internal investigation shows several breaches of security allowed a 25-year-old robbery suspect to escape from the Black Hawk County Jail in Waterloo, Iowa last month.
Sheriff Tony Thompson said Wednesday in a news release that an internal fire tower door had been left open while contractors made security upgrades in the housing units last month.
Inmate Jeremy Mask used the jail intercom to persuade a control technician to let him go through a control door, which let Mask then find a route to freedom on July 12th. He was captured the next day south of La Porte City.
The security breaches have been addressed and some jail employees have been punished.