In another development in the chilling Kerala cyanide murder case that shocked the country, police on Tuesday recorded the statement of Rojo, the US-based brother of Roy Thomas in a marathon nine hour sitting, on whose complaint the probe began into the case relating to the suspicious deaths of six members of a family here over a 14 year period from 2002. The statement of Renji, Rojo's sister, was also recorded.

The prime accused in the case, Jolly Joseph, wife of Roy Thomas, was arrested early this month, along with two others. Six separate cases have been registered by police and investigation is in progress. Rojo Thomas, who arrived in Kerala from the US on Monday, appeared before investigating Officers at the Kozhikode Rural Superintendent of Police office at Vatakara on Tuesday with Renji and two sons of Roy Thomas and was questioned in detail.