/usr/lib/libvtkWidgetsTCL.so.5.8 is in tcl-vtk 5.8.0-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libvtkWidgetsTCL.so.5.8.0
/usr/lib/libvtkWidgetsTCL.so.5.8.0