'Twas on the news at lunchtime, no English reports found, but apparently:
"オーストラリア国籍で住所不定・無職のリチャード・アラン・バロウズ容疑者(36)です。"
an Australian national of no definite address or employment, Richard Allan Borroughs (?), though apparently living in Suginami-ku; accused of causing death of his 14-month old daughter by shaking her violently.
http://news.tbs.co.jp/newseye/tbs_newseye2611253.html ← with video