Now our question is still he is demanding money and if we issue any legal complaints/action he will commit suicide and write death note on our names etc etc
Please advice for the same, do we responsible for his wiered decisions?
If that happens do we need to face/consequences ?
If he really commits suicide, nobody can stop is death. Let him go ahead so that there will be an end to a never ending struggle and tortures to our sister. Also it depends on his suicide note about his allegations on others who abetted his suicide.
one more query
my brother in-law saying he will mention our all family members name in death note like that ,what will be the consequences for the same
To be on the safer side, register a GD in the nearest police station to protect yourselves from the apprehended danger.