Should I tell my friend what I found on the internet?

I was speaking to a friend of mine this evening who was telling me about her brother. She has not seen him in some time and it has been a pattern over the years that he disappears for a while and then shows up. She gave me his name and after a little bit of searching I was able to find out that he died two years ago and was living maybe 10 miles away at the time. I was also able to find out which cemetery he is buried in and even the location of his grave. I know with 100% certainty that the person I found is my friend's brother. My friend has a difficult relationship with her family and she is having a number of her own issues right now so I am conflicted about telling her. I fear that telling her will only make her current situation more difficult for her but I also fear not telling her because while she has not seen him in some time she spoke of his tendency to reappear out of the blue after several years of no one hearing from him. I don't want her to continue to hold out some hope that he will suddenly pop up again but I also do not want to cause her any more pain. I also don't know that I could face her knowing this information without telling her. I would really appreciate any suggestions/guidance people here could give me.