/usr/ is in libjson-glib-dev 1.0.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/json-glib-1.0/
/usr/include/json-glib-1.0/json-glib/
/usr/include/json-glib-1.0/json-glib/json-builder.h
/usr/include/json-glib-1.0/json-glib/json-generator.h
/usr/include/json-glib-1.0/json-glib/json-gobject.h
/usr/include/json-glib-1.0/json-glib/json-gvariant.h
/usr/include/json-glib-1.0/json-glib/json-parser.h
/usr/include/json-glib-1.0/json-glib/json-path.h
/usr/include/json-glib-1.0/json-glib/json-reader.h
/usr/include/json-glib-1.0/json-glib/json-types.h
/usr/include/json-glib-1.0/json-glib/json-version-macros.h
/usr/include/json-glib-1.0/json-glib/json-enum-types.h
/usr/include/json-glib-1.0/json-glib/json-version.h
/usr/include/json-glib-1.0/json-glib/json-glib.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/json-glib-1.0.pc
/usr/share/
/usr/share/gir-1.0/
/usr/share/gir-1.0/Json-1.0.gir
/usr/share/doc/
/usr/share/doc/libjson-glib-dev/
/usr/share/doc/libjson-glib-dev/NEWS.gz
/usr/share/doc/libjson-glib-dev/changelog.Debian.gz
/usr/share/doc/libjson-glib-dev/changelog.gz
/usr/share/doc/libjson-glib-dev/copyright
/usr/lib/x86_64-linux-gnu/libjson-glib-1.0.so