The Attorney-General's office says it would be improper to try to influence the sentencing of Ewen Macdonald, the man found not guilty of murdering Scott Guy.

Guy's widow has written a letter urging the Government to protect her. In it, Kylee Guy said she will be forced to flee the country if Macdonald is released from prison.

Feilding farmer Scott Guy was shot dead in his driveway in 2010, on his way to milk cows. His brother-in-law Macdonald was found not guilty of the crime after a month-long murder trial in July.

On Friday, Macdonald will be sentenced for killing 19 calves, two counts of arson, poaching, destroying 16,000 litres of milk and an axe attack on Guy's home.

Macdonald admitted arson and causing damage to the Guy's nearly completed new home in an attempt to frighten them. He smashed windows and walls and wrote obscene words on the walls.

Macdonald has spent nearly 17 months in jail since his arrest.

In an emotional letter, Kylee Guy has asked Attorney General Chris Finlayson from "the bottom of my heart" for help to end her "horrible nightmare".

"Ewen Macdonald is a very dangerous, vindictive man and an extreme danger to our society and people. He needs to pay for all of his individual and separate crimes and the hurt, pain and suffering he has caused; not only to myself, my husband and our children but to numerous other people within New Zealand."

Kylee Guy said she was "deeply afraid" Macdonald would re-offend because he had inflicted "unthinkable vengeful and spiteful attacks".

"I am now alone and I must protect my children and for this I need a sentence that reflects appropriate justice."

Kylee Guy said a concurrent sentence, which would enable Macdonald to serve sentences for his crimes simultaneously, would not reflect the "true gravity" of his actions.

"I love New Zealand, I want it to remain my home, but with what has happened and what I fear could happen, I will live my life in fear for the safety of (sons) Hunter, Drover and myself.

"Once Macdonald is released my only choice to provide safety for my family is to move from New Zealand, away from the support of family and friends; how is this fair?"

Kylee Guy urged Finlayson to "look at this within your heart and help us".

A copy of the letter was also sent to Prime Minister John Key, Justice Minister Judith Collins and Courts Minister Chester Borrows. It was also sent to Labour leader David Shearer, his MPs Lianne Dalziel and Charles Chauvel, and NZ First leader Winston Peters.

A spokesman for Finlayson today said the minister hadn't yet read the letter as it was only received on Friday but it would be "improper" for the Government to influence court decisions.

"No politician should comment on sentencing that is before the courts because that is a matter for the judge."

A spokeswoman for Key said the Prime Minister hadn't read the letter because he was overseas but he was unable to comment on the case anyway because it was still before the courts.

The unsolved murder case has cost the taxpayer more than $1.15 million. About $333,000 of that was cost was Macdonald's trial.

The final bill is expected to rise when Macdonald is sentenced on the other charges.

THE LETTER

Attorney General
Parliament Buildings
Wellington

5th September 2012

Dear Sir/Madam

Please from the bottom of my heart consider this letter. I have been living in this horrible nightmare for over two years and it can't keep going on. Ewen MacDonald is a very dangerous, vindictive man and an extreme danger to our society and people.  He needs to pay for all of his individual and separate crimes and the hurt, pain and suffering he has caused; not only to myself, my husband and our children but to numerous other people within New Zealand. I am deeply afraid that he will re-offend as he has delivered unthinkable vengeful and spiteful attacks. I am now alone and I must protect my children and for this I need a sentence that reflects appropriate justice.  If the offender is granted a concurrent sentence it will not reflect the suffering he has caused to my family, neighbours and the community and will mean that he is able to escape the true gravity of his actions.

I love New Zealand, I want it to remain my home, but with what has happened and what I fear could happen, I will live my life in fear for the safety of Hunter, Drover and myself.  Once MacDonald is released my only choice to provide safety for my family is to move from New Zealand, away from the support of family and friends; how is this fair? 

How much more pain do I and many others need to suffer as victims; as a country this is not right. New Zealand is regarded as a safe country that stands up for its people and we need to maintain this belief. 
 
Please look at this within your heart and help us.

Thankyou so much for your time

Kylee, Hunter, Drover and always our beautiful Scotty
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