JACK Williams, 16, was a “lovely boy” who was shy in company, but idolised his mother and father.

He and his father shared interests including hunting, while he was his mother’s “best friend” and was close to his half-brother Josh.

While he was quiet and unassuming, he could also become very aggressive when denied his own way, the report reveals.

He blamed his mother for his father’s death and later self-harmed saying he “wanted to be with dad”.

The Child and Adolescent Mental Health Services (CAMHS) gave him support and the police referred the matter to social services.

They agreed to hold a meeting with police but this did not include other agencies, most notably health professionals.

Jack was assessed on September 8 at his aunt’s home but there was no follow- up with any other agency or family member, despite Jack airing concerns that his mother had “disowned” him, leaving him feeling he had lost both parents and Josh, who he had fallen out with.

The report will say social services placed a lot of faith in the fact Jack was seeing a (CAMHS) psychiatrist and did not contact them before closing the case to check if he was aware of all the issues.

They also failed to contact his mum to tell her the outcome of the assessment.

Despite being arrested for an alleged assault on his maternal grandmother’s partner, him being considered a key suspect in instances of criminal damage on his mother’s family’s cars and homes and his previous self-harming, CAMHS said he appeared to be dealing appropriately with his grief.

On the day of his death the report said he destroyed his Xbox, which he loved, his television and other possessions, but gave no warning of his intentions to take his own life, and his death was a shock to all, the report says, and at no time in the weeks leading up to the shooting did police officers recognise or understand the risks to Jack, and instead their main focus was to protect his mother from his father.

Following the shooting, no proactive steps were taken by any agency to ensure Jack was protected and his welfare was being looked after.

Senior officers did not grasp that this was a series of exceptional events, which may require some co-ordination.

Abuse allegations were not known

DARREN Williams, 45, was known to police and health services, but the report says there was nothing to alert them to any concerns about the family before the incident.

They say that while Mrs Williams alleges years of domestic abuse at his hands, this was not known to anyone outside of the family.

Despite contacting police in 2007 and 2008 saying she was fearful of her husband, the incidents were not logged by the police, which meant professionals who came into contact with the family in the weeks leading up to the shooting were unaware of his violent history.

A multi-agency risk assessment conference was held following Mr Williams’ arrest for allegedly assaulting his wife on July 9, 2011, but no proactive action was taken.

The report said that the speed at which things escalated from then onwards meant police were not able to complete their investigation into one complaint before another complaint or allegation was made.

Health professionals at this time did not know Mr Williams was receiving counselling for drug abuse because he did not mention it. His family say his mental state deteriorated in the days leading up to his death.

He cried constantly, couldn’t sleep and suffered panic attacks.

His family even sought help from adult social services because they were worried he might try to kill himself.

But Mr Williams did not share his thoughts with a doctor who contacted him by phone and today’s report will say it is likely he had already determined his course of action, so the subsequent events of that day could not therefore have been prevented or predicted.

Following his death, the danger of risk associated with the family was relaxed, because Mr Williams was no longer a threat.

There were no follow-up meetings with the family and the report says it is impossible to determine whether this would have resulted in a different outcome for Jack, who, like his father, did not share his feelings with his family.

Mr Williams a 6ft 7in former body builder, who weighed around 25 stone was said to have used illegal anabolic steroids for many years.

But he had stopped taking them and was seeing a drug counsellor to help him reduce his dependence on drugs including diazepam, which he used to calm himself down when he suffered panic attacks.

He had a history of mental health problems and had previously seen his GP for anxiety and depression and was referred for anger management therapy in the 1990s.

He also had two in-patient stays in 1987 and 1989 after trying to take his own life after being left deeply affected by his brother’s suicide.

The report said he and his siblings frequently witnessed “severe” domestic violence and he was at times the main carer for the family.

While he presented a vulnerable and calm manner to health professionals, he portrayed a different side of his personality to police of whom he had a “deep mistrust”.

He had a number of criminal convictions, including possession of unlicensed firearms and pepper spray.

At the time of his death a police search of the marital home revealed a number of sword, knives and air rifles, as well as Kray twins’ memorabilia, with whom he was said to have been obsessed.

His wife was said to have had a calming influence on him, and despite being physically tiny in comparison to him, was able to control some of his behaviour.

It was she who helped him seek help to address his issues from a counsellor.

While she described him as a loving father, Mrs Williams said he was a frightening, controlling partner who would often break things around the house when angry.

She told the report author Ruby Parry: “When he was coming at you, you ran.”

She claims to have suffered years of domestic abuse, both physical and emotional, which his family are said to have found difficult to believe given the side of him they knew, and his childhood experience of domestic violence.