meetings leaving his wife alone in nairobi with their five kids. i got woken up at about 6:00 a.m. with a phone call from paul weaver, our dear family friend, so i knew it was not good. do you remember what he said? there is an attack going on at westgate and your wife and sons are in there and they re separated. that s a call you don t want to have to make. reporter: paul weaver, the walton family friend had been at home recovering from surgery when he got an urgent text from catherine. what time did the first message come in? the first one came in at 12:52. and what did she say? she said, pray, shooting in westgate. hiding. that s a message. it just blew me away. so i actually wrote her back, really? and she said, yes, i don t know where the boys are. and she said, find blez. reporter: he texted the walton s oldest son, blez, but he didn t answer. i started looking on the internet. somebody put out a statement on facebook saying don t call anybody because when
morning checking for updates. then suddenly he received a facebook message from a friend with a freeze frame, a video and there in the bottom right-hand corner was an unmistakable sight. his two sons alive and outside the mall. it was my two sons standing with my business partner, who is a very big, very noticeable man. reporter: paul weaver raced down to the mall area and confirmed the picture was real. the boys were out. and just seeing them, i mean, i don t think there was any bigger hugs in the world. but it was joy. but at the same time seeing the anguish in their face. and blez, we just sat on the floor and he laid his head down and all the emotions coming through him. it was the greatest moment and one of the saddest moments at the same time. reporter: a joyful moment for phillip knowing his boys were