dive. the plan to swim them out can't be acted on yet. he has said that if the situation gets worse, if the rains come, then they will consider pressing forward with that plan and in fact rains are forecast starting for this weekend. he did say that he's concerned about oxygen. the oxygen levels in the space where the boys are. that's why they're trying to lay an oxygen line in there to provide a little more breathing space for the boys also coupled with a communications line to coordinate any incoming rescue effort, also to help the boys speak with their families nervous up on top, trace. >> trace: what else do we know about the diver that died? >> yeah, this is an amazing thing. shows the dangers of this rescue effort and the heroism that everybody is involved in there. he's a 38-year-old former thai