>> what are the odds? it's -- >> it's like winning the lottery. >> great. >> to have both of them do this. >> reporter: now after that second successful surgery darren is playing catch with his son, healthy and back on his harley. >> i mean, i owe so much to both of them for doing what they did for me. it's -- it's amazing. >> reporter: darren conrad never imagined that living on this suburban street would save his life. that neighbors could become family. >> my girls. >> reporter: barbara pinto, abc news, plainfield, illinois. >> that story should warm your heart a little bit, too. and scary stat here in terms of baby boomers out there. 1 in 33 boomers has some kind of liver medical issue here. most of it is because of chronic liver disease or cirrhosis, which is obviously linked to too much alcohol. >> 27,000 people in the u.s. die each year from chronic liver disease. i know you mentioned those stats. but a lot of people keep in mind