Long, 19, and 18-year-olds Albert Bowers and Jessie Cole were convicted of manslaughter, but cleared by a jury on July 24 of murdering the 28-year-old newlywed as he responded to an early-morning burglary in Berkshire on August 15 last year.
Long admitted manslaughter, and the jury found the two other defendants guilty of the same charge. The judge, Mr Justice Edis, handed Cole and Bowers 13-year jail sentences each.
During the sentencing prosecutor read a victim impact statement from PC Harper’s mother Deborah Adlam.
She said: “I am unable to explain the enormity of what I’m feeling and have been struggling with since we were awoken on August 15, 2019, at 4.45am to the worst news imaginable.
“He died because these defendants chose to steal a quad bike.
“My family and I feel broken – can you imagine a loved one dying with such indignity?”
She continued: “He was our first-born child and he has been ripped from me.
“I haven’t been able to work for fear of breaking down, my mind just isn’t in the right place, my anxiety is overpowering.
“I hardly sleep… I have no motivation or even daily routine – chores or cooking a meal, it just feels pointless now.
“I have sat in the mortuary of my son’s covered body, too damaged for me to see.
“He will never get to be called ‘daddy’ or hold his own child – we imagined this was not too far away in the future.
“Andrew was such a good man, a brave, a caring person, funny and uplifting. I love and miss him daily with every passing moment. He will be loved forever.”
Speaking at the time of the conviction, Pc Harper’s widow Lissie said she was “immensely disappointed” with the verdict.
During the sentencing she read her victim impact statement to the court herself.
She said: “This is my third attempt at writing a statement.
“I simply find myself in a lost and endless...