he went on. a few days later, oceangate s stockton rush replied. he told rob mccullum. the next day, rob mccallum replied in the starkest terms. oceangate s lawyers then contacted rob maccullum and threatened legal action. today, we ve contacted them again and they say they have no additional information. rob mccallum maintains that no one should have gone in this submersible. our science correspondent jonathan amos has been tracking this story since the sub was first reported missing. this is a stark exchange your? it s a this is a stark exchange your? it s a fascinating exchange, actually. it is polite ish, but it s also very testy indeed. we should perhaps explain who rob mccullum is, he s got a storied career in deep submersibles. he led the five deeps expedition so this was the american adventure of the first person ever to reach the deepest points and all the world s oceans. so he certainly knows what he s talking about. and his criticism of stockton rush here, the c
meanwhile, tributes have been paid to the five men who were on the sub including british businessman shahzada dawood. well, shahzada dawood was a supporter of the british asian trust. richard hawkes is the chief executive of the organisation and hejoins us now. i m sorry for your loss, richard, i m sorry foryour loss, richard, of course i m sorry for your loss, richard, of course it s a difficult time for friends and family of mr dawood. tell us more about him.- friends and family of mr dawood. tell us more about him. thank you very much tell us more about him. thank you very much for tell us more about him. thank you very much for your tell us more about him. thank you very much for your sympathy - tell us more about him. thank you very much for your sympathy and l very much for your sympathy and condolences. obviously all of us at the british asian trust are devastated by this terrible tragedy. shahzada dawood was an incredibly lovely man, i had the great pleasure of k
were over the craft s unusual design. it s non spherical state, effectively, the reliability of the material it was made of, carbon fibre, and the fact that it also not answer any external, independent testing process. the bbc has been given a e mail exchange between stockton rush, the ceo of oceangate who died in the incident, and a leading deepwater explosion specialist. the e mails sent in 2018. rob mccallum warns stockton rush. he went on. a few days later, oceangate s stockton rush replied. he told rob mccallum. guillermo, the former co founder of oceangate. .. the next day, rob mccallum replied, in starkest terms, i think you are potentially placing yourself and your clients in a dangerous dynamic. right, let s get more on this right now. our science correspondent jonathan amos is standing by. this is quite a stark exchange of e mails? it this is quite a stark exchange of e-mails? , ,., , , , e-mails? it is polite but it is very testy. one e-mails? it is polite but it