South African athlete Oscar Pistorius must pay for killing his girlfriend Reeva Steenkamp, her father has told a judge, breaking down in tears.
Pistorius was found guilty of murdering Ms Steenkamp after a court overturned an earlier manslaughter verdict.
The sentencing hearing – expected to conclude by Friday – will decide if he will face a jail term of 15 years.
Barry Steenkamp asked for photos of his daughter’s body to be made public so people could see the wounds.
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Correspondents say Mr Steenkamp’s voice broke and tears streamed down his face as he said that he thought about his daughter “morning, noon and night… every hour”.
The 73-year-old said that losing his daughter in February 2013 had led to him having a stroke and he had not been the same man since.
He told Pretoria’s High Court that he had had no contact with Pistorius, but said that wife June had been able to forgive the double-amputee athlete.
“You must understand why forgiving doesn’t exonerate you from the crime you committed. He must understand why he needs to pay for that,” Mr Steenkamp said.
Pistorius, 29, killed Ms Steenkamp in the early hours of Valentine’s Day in 2013 after firing four times through a locked toilet door.
The athlete has always maintained he believed he was shooting at an intruder.
He was initially jailed for manslaughter in 2014 and was released into house arrest after a year, but his conviction was changed to murder after the prosecution appealed.
Pistorius was released from prison last October and allowed to serve out the remainder of his initial sentence under house arrest at his uncle’s property in Pretoria.
The South African made history by becoming the first amputee sprinter to compete at the Olympics, in London in 2012.
He competed in the 400m, wearing carbon-fibre blades to run against able-bodied athletes.