Not since Leia Organa has a hologram been this helpful.
Sandra spent two weeks answering questions in front of hundreds of cameras to generate a hologram version of herself.
Unfortunately, holo-Sandra isn’t very useful at answering things like “who killed you?”

NCIS season 19, episode 9.Sonja Flemming/CBS
or “why’d you get a threatening note in your mailbox?”
He then suggests that the butler did it, having just been removed from Sandra’s will.
Knight asks holo-Sandra where Geoffrey might have gone, and she (it?)
mentions a place she used to take her kids camping.
The team brings Beck in under the pretense of getting Sandra’s friends to help talk to her hologram.
Beck convinced Ben to help, then Beck framed him.
Sandra took the fall to cover for her son, but she never stopped investigating the crime.
When she got too close to the truth, Beck killed her.
In light of this, she finally agrees to sit down and talk to holo-Sandra.