it's okay to cry. >> his brother died so he's feeling very sad. >> grief is truly a public health problem. we have got to begin to address it. >> coping is how we deal with our feelings. we're giving families a sense of hope. we're helping to heal wounds and bring families back together again. >> huge inspiration. sanjay gupta, md, is coming up in about half an hour. what do you have for us? >> fred, imagine having two sons with a fatal disease. one of them gets an experimental therapy and thrives. the other doesn't, just has to sit by and watch. as a father myself, i can't even imagine this scenario. we'll show you the real battle that this family is facing today, sg, m.d. >> wait a minute. hold the phone. hold it. who do i see here? >> it's me. >> no. no, no, no.