If you look at the list of (former) contributors of Tukaani, you will notice that an overwhelming majority of the names are Finnish, Lasse included, though he could also pass for Swedish. So FBI is going to investigate Github at most, unless Lasse has suddenly moved to the US or FBI has invaded Finland in some capacity.
All meaningful new information will probably come from identifying Jia Tan, if that ever happens. I haven't done much reading yet, but it seems to me there was no connection between him and Lasse outside the Github project.
https://tukaani.org/about.html
All meaningful new information will probably come from identifying Jia Tan, if that ever happens. I haven't done much reading yet, but it seems to me there was no connection between him and Lasse outside the Github project.