Investigators have found a blood-stained spade from Lisseux Carmelite Convent in Palai, where a Catholic nun was found dead on Thursday, 17 September. The spade has been sent for forensic analysis.

Sister Amala of Congregation of the Mother of Carmel (CMC) in Palai was found dead in a pool of blood inside her room in the third floor of the convent. 

Even though a person named Nasar from Kottayam surrendered at the Mahe Police Station, claiming that he had killed the nun, police found him mentally unstable.

Read More: What we know so far in Sister Amala's Death

Investigative officer ADGP K Padmakumar had earlier claimed that the murder might be committed by someone who knows the convent well.

The investgation was extended to three mentally challenged people, who have earlier committed similar crimes. Reports also had it that one of them were spotted in the town recently and the lock of the convent's grill was found broken twice in the night when mishap happened.

Sister Amala's post-mortem was conducted at the Government Medical College Hospital in Kottayam and her funeral was conducted at 9am at Kizhthadiyoor St Joseph Church Cemetery on Saturday.