Moves to release a convicted killer from a psychiatric institution are under way after he served just seven-and-a-half years for stabbing to death two members of the same family
Gregory Davis, 33, pleaded guilty to two counts of manslaughter on the grounds of diminished responsibility.
In a random, frenzied attack with no apparent motive he took a knife and a hammer to the Milton Keynes home of Dorothy Rogers in 2003 and stabbed the 48-year-old 31 times.
Her 19-year-old son Michael tried to escape but was chased to a children's playground where Davis stabbed, bludgeoned, then disembowelled him
A third victim, Dorothy's boyfriend Mick Cowles, was also attacked with a hammer and seriously injured.
Afterwards, with his victims lying in pools of blood, Davis calmly picked up his girlfriend and took her on a date.
It was at a Mental Health Tribunal at the beginning of the month when the conditional discharge of Davis was agreed, despite only serving seven-and-a-half years in psychiatric institutions.
Ms Rogers' surviving son, who did not want to be identified, told Sky News: "This was a completely unprovoked attack
"There's always a permanent threat that the offender could re-offend and in another if not more brutal way another time.
"We believe this is a complete travesty of justice and we feel that we've not been given the support that we deserve, especially after the loss of two precious lives."
In a statement, a spokesperson from the Ministry of Justice said: "Mental Health Tribunals are independent judicial bodies, responsible for deciding whether it is necessary to detain or discharge restricted patients.
"Conditionally discharged patients are supervised in the community by a psychiatrist and a social worker
"As well as being required to meet with mental health professionals, they also have to abide by certain conditions to ensure public safety, which may include abstaining from alcohol, or adhering to exclusion zones such as the area where the victim lives.
"They may also be recalled to a secure hospital by the Secretary of State if there is evidence of increased risk to the public."
The conditional discharge has been agreed in principal, but has not yet happened.
A further meeting regarding the fate of Davis between police, social workers and psychiatrists is scheduled to take place in a few days' time.