dewar ta who is homeless found the gun wrapped in a t-shirt admitted to the shooting but claims it wasfense experts claiming the bullet ricocheted off the ground. >> this is not the way you try to shoot somebody. you can't ricochet bullets off surfaces and try to hit somebody. you aim the gun at the person and shoot them. >> reporter: the prosecution charging him with second-degree murder contends it was no accident. now it's up to a jury to decide. in a case that will once again reignite the volatile debate over the country's immigration laws and sanctuary cities. dan simon, cnn, san francisco. >> dan simon, thank you for that. we will stay on that trial as it gets under way. the widow of a fallen u.s. soldier says she still has no idea how her husband was killed or why he was left for 48 hours. her interview you will hear next. remember that accident i got in with the pole, and i had to make a claim and all that? is that whole thing still dragging on? no, i took some pics with the app and... filed a claim, but... you know how they send you money to cover repairs and... they took fore