Ahemdabad: Kartik Haldar has secured for four day remand. Haldar is accused for killing Amrut Prajapati, Kripal Singh and Akhil Gupta, who were witnesses in reape cases against Asaram Bapu and his son Narayan Sai. Kartik Haldar who is the resident of Raipur, Chhatisgarh officially said they will try to establish a link between the killings and also ascertain whether any other person from the ashram run by the father-son duo is involved. Crime branch official said "We have to get information on the others involved in the case. He will also be questioned on the source of the weapons, money and support in all these cases. We are corroborating facts from cases established so far and his statement. Investigation of the names that have cropped up so far is under way”.