Yes, if the text messages and social media posts of pre-suicidal people systematically differ from those of others, as I think is likely. Is there a data set of

Yes, if the text messages and social media posts of pre-suicidal people systematically differ from those of others, as I think is likely. Is there a data set of say Facebook posts of people who attempted or actually committed suicide along with data for people who did not? If an algorithm were developed to give you warning signs for family members and friends, you could connect with them and see how they are doing.