[aur-general] Tower Toppler was orphaned

At my usual 'aurphan --aur' run I discovered that https://aur.archlinux.org/packages/toppler/ was orphaned. I adopted it, but would like to know why it was orphaned. Can you guys tell me who the previous maintainer was? In the PKGBUILD there is some contributors listed, but I don't know who was the last maintainer. TIA