Police say Sararat Rangsiwuthaporn is suspected to have poisoned at least 13 people since 2020.

https://www.bbc.com/news/world-asia-65395398?xtor=AL-72-%5Bpartner%5D-%5Bbbc.news.twitter%5D-%5Bheadline%5D-%5Bnews%5D-%5Bbizdev%5D-%5Bisapi%5D&at_medium=social&at_bbc_team=editorial&at_link_type=web_link&at_link_id=3E1EE88E-E4D0-11ED-974E-1E7A79448730&at_link_origin=BBCWorld&at_campaign=Social_Flow&at_format=link&at_ptr_name=twitter&at_campaign_type=owned