Hey good day I saw your post you claimed the original owner of the btc address 12ib7dApVFvg82TXKycWBNpN8kFyiAN1dr is dead Is this true or are you joking around i seriously have the private key this isn't a scam i have no reason to scam anyone and you say the owners son is alive can you fill me on the details please am trying to help I really have the key I just don't want to steal it cause it isn't mine and that would be wrong and the btc is way too much so when people do ask me I won't have to cook up a cover story of how I got all this btc/money I want to do this the right way the legal way so fill me up on the details I had no idea the owner of the address was dead or if he left the address for his son.
What makes you think the owner will be a member of this forum? He could be someone who has never been in this forum so how else will you track the person, will you make a public announcement on various social media?
Out of the goodness of your heart you decided to handover such huge amount of btc without being tempted! I think you should do what was suggested above by a member to sign a message with this wallet and post it here for everyone to verify if actually you have the pk.