The self-confessed middleman in the murder of Maltese journalist Daphne Caruana Galizia was in a critical condition Wednesday after appearing to have attempted to kill himself, police said.

Taxi driver Melvin Theuma, who was granted a presidential pardon last year to give evidence on the deadly 2017 car bombing, was found late Tuesday lying in a pool of blood, according to police commissioner Angelo Gafa.

“The indications are that Theuma’s wounds were self-inflicted,” Gafa told journalists at a press conference Wednesday.