simon siegel, a structural engineer born in cuba. his family sharing he loved to travel and having movie nights with family. he truly loved life, they said. lewis, his grandmother saying my grandson is my everything. first responders have been carefully combing through the wreckage, searchers forming a human chain. removing debris by hand using sonar, dogs. >> you can see the e respondersg in through tunnels. they're worng f t p. they'ree .it has to be done ver carefully. >> reporter: teams of 10 to 12 rescuers entering the rubble, working in 15 minute shifts until they grow tired from lifting the heavy debris. the search and rescue effort hindered this morning by pouring rain and heavy wind. the whole structure so unstable locks around the tower have been closed. the crews have been to disasters before to ground zero in new york. to haiti and they are not giving up hope. >> everybody is running in one direction. they're running into the problem. and trust me, they're putting their lives in peril. >> reporter: tonight so many questio

simon siegel, a structural engineer born in cuba. his family telling us he loves travel, movie nights with the family. he truly loves life, they said. luis bermudez, his grandmother at a loss for words, saying, my grandson is my everything. a rabbi saying seven members of his congregation, his extended family, are missing tonight. >> so many people are really, really, really hurting because we're a loving community. >> reporter: joshua spiegel waiting for word on his mother, judy. >> it's a struggle. we are praying every minute. we are hopeful that she's there alive, and we're going to see her soon and be able to hold her hand and kiss her. and we love her so much, and we're going to see her soon. >> reporter: late this afternoon we met michael noriega, showing us photos of his beloved grandmother hilda. is that this christmas? >> it was. >> reporter: hilda, his family's last living grandparent, 92, living in apartment 602. >> she was the most loving person i ever met in my entire life. she lived for her family. and i'll venture to s