On Christmas Eve 2016, a 5-year-old boy survived a shooting in his Mountain View home. He told police 'Ninjas' killed his family.

Investigators determined there were four so-called ninjas and now prosecutors are trying to prove Lamarkus Mann and Savon Wiley are two of them.  

The trial for Mann and Wiley, both 25, began on Tuesday, after more than two weeks of jury selection. 

Testimony on Thursday centered around the fatal injuries of both victims, 38-year-old Christopher Brooks and his 32-year-old wife Danielle Brooks.

Jurors heard from a medical examiner and saw photos from the couple's autopsies. Christopher's body was riddled with bullet holes, from his face to his legs — 11 gunshot wounds in total. Danielle was shot three times.   

Police say a group of men went to the Brooks’ home in order to steal drugs and money from them. Court documents allege they broke into the home wearing T-shirts over their faces. 

During the robbery, detectives say Mann shot Danielle and then Christopher was shot after a struggle over the gun. Danielle died inside the home. Christopher made it outside, but later died. 

The other men charged in the case are Deanthony Malik Harris and Jaylyn Franklin, who are both 22. Franklin pleaded guilty to murder for his role in the shootings earlier this year. He is serving an 80-year sentence. Harris' case has not yet been resolved.   

Anchorage police say Christmas Eve was the deadliest day of 2016, with three homicides in less than 24 hours. 

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