escorted by officer chris st. martinn proved to be far more emotional than she could have imagined. >> here you go. safe and sound. you want my chair? the black one. sit down. sit down. there you go. you're good. >> though returning to the cell block was difficult, talley told us it was also cathartic. >> yeah, i was down for awhile. but i'm not dead. they didn't kill me. i'm okay. emotionally, i'll heal. some day. and the sleepless nights, and the worry, and the wonder, oh, my god is this ever going to happen to me again. i've dealt with most of that. and it's -- it's really a hard thing. >>> next, on "lockup: raw," an inmate turns violent against himself. >> [ bleep ] yeah! yeah! yeah! >> stop, stop. ♪ these little guys? they represent blood cells. and if you have afib - an irregular heartbeat that may put you at five times greater risk of stroke - they can pool together in the heart, forming a clot that can break free, and travel upstream to the brain where it can block blood flow and cause a stroke. but if you have a