I met this man in person through a friend. I believed what he said and trusted him. He says he has some algorithm software that trades cryptocurrency and promises to double your money in 3 days to 30 depends on how many bitcoins you give him. He gives you a sample and you send him coin on the spot and he doubles it in 30 minutes. Then he sends you $500 worth or whatever the double was. He told me he would double mine in 3 days. 3 days passed and he apologize and gives some excuse and then says tonight. Tonight, tomorrow passes and he still says for late payment, you get 50. The day he said he would passed and then he wouldn't answer the phone, text, social media communications. Then I find out another group of guys he scammed for 200 bitcoins. He claimed he has some lawyer and gives you a copy of contract you sign and send back, but nothing has happened. I found out he is the grandson of some crime boss in Australia named Abe Saffron and his father's name is Alan Saffron and his mother's name is Genevieve. His father was on a show called kitchen nightmare and owned a restaurant in LA that now closed. They are in Florida. And his sister's name is Rebecca Saffron in Denver, Colorado and his Brother is Adam Saffron who is in Sydney Australia. David has several dating profiles and he might be scamming women through there too. He has a fetish for BDSM and manager at Academy of Sin. Funny they called his grandfather Mr Sin. This pathetic man does not hide and is openly on social media. I'm an army vet, single mother with 2 young boys and this man had no shame in stealing from me, he will do it to anyone. He is currently living in Los Angeles California. Somewhere in Hollywood.