Judge Peter Butler reserved his decision until today, delivering the guilty verdict in the Auckland District Court in front of both Kopa's and Singh's families.
Kopa's widow Calli Cleland told media after the verdict that she was relieved Singh had been held responsible for his part in the crash but nothing brought her husband back.
"Mr Kopa did not see the defendant's vehicle and jogged into its path," Judge Butler had said during his decision today.
Singh did not see Kopa until it was too late to take action, he continued.
The footage of the deadly incident was played in court during Singh's one-day trial.
Cleland left the courtroom shortly before that video was played.
Defence expert forensic engineer Dr Tim Stevenson concluded that the primary cause of the collision was Kopa's decision to cross the road.
Before Kopa died he had a tattoo in dedication of his children completed while in hospital as a last wish.
Auckland Mayor Phil Goff, a friend of Kopa and Cleland, published a tribute to him after his death.
"I had a chance to say my goodbyes to Dann on Wednesday at the hospital. It is absolutely heartbreaking for Calli to lose the love of her life and for four little girls to grow up without their dad," Goff said.