Skylar Meade was an inmate at Idaho Maximum Security Institution havingbeen sentenced to 20 years in prison in 2017 for shooting at a sheriff's sergeant during a high-speed chase. Nicholas Umphenour was released from the same prison in January. Authorities said the two were housed together at times, had mutual friends and were both members of the Aryan Knights prison gang. Skylar Meade escaped from a hospital in Boise after Umphenour started shooting at prison officers who were taking Meade back to jail. One of the officers shot was in a critical but stable condition, while the second has serious injuries that are not life-threatening. Meade and Umphenour were eventually found after a massive manhunt and arrested in Twin Falls, about 130 miles south-east of Boise after a car chase. Police are investigating two murders that could be linked to the them because they were driving a Honda Civic that belonged to one of the victims and that shackles were found at the scene of one of the killings.