Lou Reed, who died last October. I get that Lou's people might be maintaining his Twitter but it still seems weird if it's verified.
Reminds me of the dead people I saw on Facebook, which seems to have stopped. Wonder if they developed an algorithm for that?
I'd wondered if Facebook would be considered culturally insensitive for showing images of dead Aboriginals, based on the warnings you see on the television about the possibility of seeing an indigenous person who's since moved on.