Explosive new testimony from inside in Illinois court.

For the first time, we're hearing from the partner of an ex-deputy who's accused of killing

a black woman in her own home.

The partner says he was actually scared of his coworker and not the woman, Sonia Massey.

Sean Grayson's partner, you see him here in this court sketch.

He's telling the jury tonight that Massey never seemed to be a threat that night last July. Massey had called police, remember, late one night, she was worried about a prowler. This is body cam video of Grayson and his partner responding to that call. Things started getting tense when Grayson asked Massey to put down a pot of hot water that she had grabbed from the stove. So this is her. You see her walking over to it in this part of the body cam video.

We'll show you a video the next moment when Grayson fires his gun at Massey three times.

You've got to warn you, it is obviously hard to watch.

You better, fucking, that's where I got.

I'll shoot you your face.

I'm sorry.

Drop the fucking pop the fuck.

The fuck.

Drop the fucking drop. Drop!

Yeah, if I was this partner, I'd been scared too.

Yeah.

And he said, they're responding to a burglary call.

He's treating a homeowner like she's a burglar.

Well, when I first thought that, when I first saw this, I was like, if you were so scared of that woman and that pot of boiling hot water, why are you moving closer to her within her range if she's going to throw it on you? I think he wanted to shoot her. Yeah. You know what? There's an evil thing to say, but I think you're right. But they directed her to take the part of boiling water off the stove.

Yeah.

Yeah.

Now, prosecutors say this body cam video proves that Massey was not actually a real threat to Grayson.

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