However, after his earlier victory over Raja Abdullah at Klang in March 1867, nothing was granted to the Dato Dagang, and to make things worse, a relative of Raja Mahadi had killed one of the Dato's followers in a scuffle. The Dato Dagang demanded that justice be done upon the perpetrator according to the 'adat ganti darah' (blood money) Malay custom, but Raja Mahadi ignored his requests. As a result, Dato Dagang withdrew his support for Raja Mahadi, and indicated to Tengku Kudin of his willingness to be on his side against Raja Mahadi, which Tengku Kudin gladly accepted. The Dato Dagang also informed Tengku Kudin (and Sultan Abdul Samad) that he was able, through his contacts in Singapore, to supply them weapons and ammunition in their fight against Raja Mahadi.