Hi all, criminal lawyer here. This is a really sad and upsetting verdict.
For a conviction of murder, you must intend to either kill or cause really serious harm to the person. If you do not have that intent, or were reckless as to the injury, you are guilty of manslaughter, not murder. Manslaughter is defined as an unlawful act causing death: So if I punch someone, and they fall to the ground, crack their head open on a paving slab and die, then I am guilty of manslaughter as I have no intention to cause really serious harm.
Although asking for an AG reference of an unduly lenient sentence is an appropriate course of action in many cases, the judge will have to sentence on the jury's finding: i.e that they were not sure of intention to kill or cause GBH, but are sure that the defendant's unlawful act caused death.
So unless the sentence is unusually low for the offence of manslaughter, then an AG ref request will not succeed.
I have no idea what caused the jury to conclude as they did in this case. Under three hours is a very short period of deliberation for murder.
I would also say that it is almost certain that both sides would have got expert pathologist reports on the injuries and possible causation. It would seem they were not conclusive, but I don't know anything about the case, so cannot say for sure.
Finally, whilst judges can be blamed for many things, this is the verdict of a jury.
Desperately sad day for Ms Parry's family. My thoughts are very much with them.