A man who murdered his ex-fiancee was an "obsessive" who wanted to cause her pain and suffering.
Mark Dyche, 36, was described in court as an "evil" man who went to great lengths to get revenge on his 26-year-old former partner Tania Moore.
The jury was told how he stalked and threatened her during a year-long campaign of hatred and harassment.
Det Supt John Briggs said: "The nature of her murder was shocking, he shot her at zero range in the face."
Ms Moore died after being run off the road and shot on a lane in Derbyshire in March 2004.
Mr Briggs said: "What we learned in a year of investigation was a man who paid a number of criminals from different areas to come and cause harm to Tania.
"She never did anything to warrant this attack.
"He has had a persistent campaign against her for over a year - it was long-term harassment to make her fear for her life.
"Dyche clearly wasn't able to take rejection from female partners and there is dramatic evidence from his ex-partners about what they had to endure."
Dyche told the trial at Nottingham Crown Court that he was angry with Ms Moore because she had been "spreading lies about him".
He said the showjumper had told people that he had given her a sexually transmitted disease, and had been involved in criminal activity.
"I didn't hate her, I was just sick of all the malicious gossip and rumours," he told the court.
Mr Briggs said it was alleged he had shot a cat and blinded a horse to cause pain to women who had left him.
Ms Moore had been robbed and attacked in an earlier incident involving Dyche.
"We investigated the robbery and it showed how desperate he was to cause Tania and her family a lot of pain," said Mr Briggs.
This case has already been referred to the Independent Police Complaints Commission.