Christina Edkins’ killer Phillip Simelane previously threatened his own mother with a knife and attempted to stab her.
The paranoid schizophrenic served a prison sentence of several months for battery last year after holding the blade towards his mother’s stomach.
Detective Superintendent Richard Baker today said her injuries had not been severe and while it had been an assault it was towards the lower end of the scale.
He confirmed Simelane had not actually stabbed her with the weapon. During the incident he had also punched a police officer.
Before the incident, police had received 21 calls from his mother about his behaviour in just under 10 years. It included criminal damage and rows with his siblings. Det Supt Baker said what has provoked the assault on his mother was not known.
He added : “What we can say is there had been calls to the police from Simelane’s mother leading up to the incident. We had been out on a number of occasions and again we can’t speculate what the particular cause of this was but there was clearly ongoing issues between Phillip Simelane and his mother probably, I would suggest, due to his mental health.”
Det Supt Baker said Simelane had been released for that offence but had been jailed later in the year for a breach of license in regards to vehicle interference and cocaine possession. He was released in December and West Midlands Police had no contact with him until March following the death of 16-year-old Christina. Det Supt Baker said: “He had been arrested and served a custodial sentence of battery against his mother last year. It was a minor assault and I think he served several months for that.
Police said it was believed Simelane had been a paranoid schizophrenic since he was b14. At the time of his attack on Christina Simelane had not been under any sort of mental health order.
Det Supt Baker said: “What I will say is all agencies involved in and concerned in the management of Simelane leading up to this incident are currently undergoing independent reviews to try and ascertain what kind of support he had and where that sat in terms of responsibility.
“From a West Midlands Police perspective since when he was released in December up until the incident we had no further contact with him.” Det Supt Baker said probation, prisons and Birmingham and Solihull Mental Health Trust were key in the review. He said from the information they had Simelane had been sleeping rough for a short period of time.
“We know on the day the driver spoke briefly to him at one point when asked to see a ticket. Simelane had asked to remain on the bus because he was homeless, he was tired and cold and just wanted to sleep.”
After Christina’s death, police received a report from that in May 2012 two schoolgirls had been approached on a bus in the Broad Street area by a man matching Simelane’s description.
Det Supt Baker said: “We have been made aware of another totally separate incident when two females were approached on a bus by a male that fits the description and may well have been Phillip Simelane.