A man suspected of killing three women from the same family with a crossbow has yet to be questioned by detectives.
Carol Hunt, 61, Hannah Hunt, 28, and Louise Hunt, 25, died at their home in Bushey, Hertfordshire, on Tuesday evening.
Kyle Clifford, 26, from north London, was found injured in Enfield after a manhunt on Wednesday. He was arrested on Thursday night on suspicion of three counts of murder.
Investigators said they must wait for medical staff to confirm that Mr Clifford, who is in serious condition in hospital, is well enough to be questioned before questioning can begin.