Yesterday, 22-year-old Bishop was sentenced to three-and-a-half years behind bars when he appeared before Justice Raynor Asher. He was also ordered to pay $5000 reparation to Mrs Armstrong and was disqualified from driving for three years.
Mrs Armstrong told of the vivid memory she had of hearing the noise of what sounded like a plane landing, but in fact was Bishop's car hurtling towards her and her husband as they rode inside the white line.
"I looked up and saw a car within centimetres of me, I saw David high in the air then dropping back on the road ... I will never forget his pale face, his eyes wide open, his tongue out, masses of blood, his helmet off his head, his cycle clothes torn. I said 'don't leave me', I told him I loved him again and again."
Mrs Armstrong said she had run towards the driver and his passenger who were sitting on the grass verge.
"I was screaming and hitting him, he said to me 'what do you want me to say?"'
She told of the anguish of seeing her husband in an ambulance under a yellow cover.
"I wanted to stay with him but they took him away, I had to tell our children he was dead."
Her daughter had flown home from Dunedin, her son had moved into her parents' home with her where she had remained for four months, too distraught to return to the home she and her husband had shared for so long.
Mrs Armstrong could not drive for four months and loud noises still terrified her.
"I considered myself to be capable, full of life, energy, now I feel so lost, angry, completely incapable of anything, I just want to run away from everyone and everything."
She described her husband as having a huge personality, the real love of her life.
"That has been taken away by you, Dillon Michael Bishop, I am angry, cheated by your reckless, stupid, selfish actions."
Mrs Armstrong had been forced into full-time work because of huge costs since her husband's death including his funeral, doctors' and solicitors' fees.
"It has all been very stressful, I loved my husband and I miss him."
It was especially upsetting that he had missed their daughter's university graduation in May.
"Today, I will probably get to hear how Dillon Michael Bishop is remorseful, that he didn't mean to do this, that he has to live with this for the rest of his life, that this will hang over him ... it most certainly does for us."
Shaking visibly, Mrs Armstrong said she had been told "Dillon Michael Bishop" had written her a letter, but she never wanted to read it or meet him. "My family and I are the real victims here."
She concluded by telling Bishop she hated him.
"You killed my husband, don't you ever forget what you have done."