Then there's the credibility of the witness, who was drunk at the time and initially denied seeing the body or confronting the driver. Campos said the witness altered his account in a later interview, when he was sober. Campos felt that the witness had been traumatized at the sight of the mangled body of Szukala, who had been kind to him. And he also was reluctant to cooperate with investigators because of his criminal past, which includes convictions for narcotics possession, disorderly conduct, burglary, robbery, domestic violence and escape from custody.

Source: Los Angeles Times January 22, 2018 22:43 UTC