git blame
can tell you who last changed a file line by line. But how can you find out who deleted a line?
You can pseudo-git-blame a deleted line using either of the following, depending on whether you want to do a simple string matching search or use a regex:
git log -S [string] ./file
git log -G [regex] ./file
https://feeding.cloud.geek.nz/posts/querying-deleted-content-in-git/