Skebas, who had no connection to Lilia, was arrested at his home two days after the attack, and the paring knife he had recently bought from a local shop was found behind a radiator.
He was found unfit to stand trial in the months after the stabbing and was later transferred to Rampton high security hospital.
In July 2023, a jury found Skebas carried out the act of killing Lilia, and, two years later, following an improvement in his mental health, it was decided he could face a murder trial.
During the trial, the jury was told Skebas was assessed by three psychiatrists.
All three doctors agreed Skebas had schizophrenia and was showing symptoms of psychosis on the day he killed Lilia.
But the prosecution rejected Skebas’s claim of diminished responsibility and alleged the killing was “deliberate and planned”.