. >> inmate carlos alexander would be his own judge. >> this is horrible. >> [ bleep ] that's good. this is good! >> it tastes like cardboard. y'all ought to try some of this. jake you want to eat that? >> i want salt and pepper. that's cheating though, right? >> you don't like it. >> it isn't that bad. it actually wasn't too bad. it was very bland, but if you have the right condiments, it would have been like a standard meatloaf, almost. unfortunately, the inmates in seg never have the right condiments. >> that's horrible. i don't think a dog would eat that. >>> coming up, when it comes to inmate workouts, creativity, teamwork, and a little bit of zen make all of the difference. >> lift the buttocks up any amount. excellent. ♪ [ grunts ] yowza! that's why i eat belvita at breakfast. it's made with delicious ingredients and carefully baked to release steady energy that lasts... we are golfing now, buddy! [ grunts ] ...all morning long. i got it! for the win! uno mas! getting closer! belvita breakfast biscuits -- steady energy to do what i do all morning long. belvita breakfast biscu

. >> reporter: carlos was at the race to cheer on runners, honoring his son alexander, killed by a sniperin 2004. he was handing out american flags at the finish line. >> this was the flag that i was holding and i drop it for a moment in the ground. and i pick it up and this is how this flag ended up being covered all with blood from the victims. you know? >> reporter: so many heroes, so many lives were saved. dr. george chief of trauma surgery at massachusetts general has barely slept in two days. >> most important injury was lower extremities. completely blown lower extremity off, feet and legs and calf -- >> just blown off? >> completely blown off. patients came here barely alive, having really lost a lot of blood. and it was the rapidity and efficiency of the system that kept them alive. >> reporter: and emergency room nurse christine landry. she was at the finish line. and even though she's seen a lot in the er, she's having trouble. >> i cried halfway to boston and then i had a really rough time last night. it's just not something you expect to see, even in all my years of experienc

carlos has been fighting his own demons. attempting suicide after receiving news that his son alexander was killed in iraq.marathon to hand out american flags and to cheer on two groups, one honoring the fallen soldiers, the other to raise awareness of and prevent suicide. >> we had a good reasons to be there, to cheer, to honor, and to remember. >> when the bomb went off, the first thing carlos did was snap photos. >> i was holding my camera in my hand, you know, even though i was there and shocked, i managed to take four pictures. >> carlos quickly put his camera away and went across the street to help victims but there were barriers in the way. >> so we needed to break it down in order to come and help and that was the first thing we did. >> carlos dropped to the ground to help jeff bauman who had lost both legs. >> i look at his legs, i ask for help, he has somebody help and then another person come over. i grab a sweater from the ground and i rip it apart in between this person and myself we start stopping the bleeding from jeff's legs and then i pick up jeff from the floor, i pick him up and i sit hi

carlos has been fighting his own demons. attempting suicide after receiving news that his son alexander was killed in iraq. to the marathon to hand out american flags and to cheer on two groups, one honoring the fallen soldiers, the other to raise awareness of and prevent suicide. >> we had a good reasons to be there, to cheer, to honor, and to remember. >> when the bomb went off, the first thing carlos did was snap photos. >> i was holding my camera in my hand, you know, even though i was there and shocked, i managed to take four pictures. >> carlos quickly put his camera away and went across the street to help victims but there were barriers in the way. >> so we needed to break down that fence in order for the aid to come and help, and that was the first thing we did. >> carlos dropped to the ground to help jeff bauman who had lost both legs. >> i look at his legs, i ask for help, he has somebody help and then another person come over. i grab a sweater from the ground and i rip it apart in between this person and myself we start stopping the bleeding from jeff's legs and then i pick up jeff from the floo

could.rying to do what i >> carlos, yet been through so much in your life. you lost your older son, alexandern iraq. you lost your neck son, bryan, who committed suicide a few years later. you have been traveling around the country speaking out against violence and now you witness this and tried to say people who were injured. side.ve been at carlos' you are a peace activist. thed you speak right in phone but not into the speaker phone? we can hardly hear you. melida? are you there? carlos? >> ok, i am here. i apologize. good morning. to be quite honest, since we lost brian in december 2011, carlos and i have been trying to just stay sane and have been working real hard to promote awareness about suicide, both in the military and among military families. carlos was here wrote yesterday. i was in the stands right across the street. i saw both bombings head on. us,degree did not reach thank you, jesus. the scene was very, very scary. i was in the top of the stanford i could not walk. someone had to help me down the sort of like football stands. trying to nurture each other and have been seeing