Dr. Lisa Rocchio, a clinical and forensic psychologist with expertise in traumatic stress and interpersonal violence, has now taken the stand.

She's being asked to describe the concept of "grooming," or the tactics and strategies used by child sexual abusers.

"They will exploit whatever vulnerabilities they've identified in a child," Rocchio testified.

Prosecutors have just called their next witness, Paul Kane, the finance director of the Professional Children's School on the Upper West Side.

One of the four alleged victims, Jane, attended the exclusive prep-school -- which counts Uma Thurman and Paris Hilton among its alumni -- for her senior year, moving to the Big Apple from Palm Beach, Florida.

Kane was asked to look at an application to the institution, purportedly Jane's, that showed Jeffrey Epstein as having "financial responsibility" for her schooling.

Day 3 of Ghislaine Maxwell's trial saw the first of four accusers, "Jane," get grilled by defense attorneys over apparent inconsistencies between her testimony and what she had told the feds previously.

But Jane said no one had recorded her statements to investigators -- and explained why it was hard for her to speak to authorities at first.

"I was sitting in a room full of strangers and telling them the most shameful, deepest secrets that I'd been carrying around with me my whole life," she testified.

Jane -- who is using a pseudonym to protect her identity -- also divulged that Jeffrey Epstein took her to Mar-a-Lago to meet Donald Trump when she was 14 in the mid '90s, and also to New York for "60 Minutes" journalist Mike Wallace's 80th birthday. Read more here.

Good morning. It's Day 4 of Ghislaine Maxwell's trial in Manhattan federal court.

Our reporters, Tamar Lapin and Ben Feuerherd, are gearing up for another day of testimony.

Daniel Besselsen, the VP of finance at Interlochen Center for the Arts, finished his testimony yesterday. The Michigan camp is where accuser "Jane" said she first met Maxwell and Jeffrey Epstein in 1994.

And that’s a wrap on Day 3 of Maxwell's trial. Testimony is set to continue tomorrow morning at around 9 a.m.

Catch our in-depth coverage of today's proceedings here.

Daniel Besselsen, the VP of finance at Interlochen Centre for the Arts, is now testifying about the organization's summer camp, which one of Maxwell's accusers attended.

Jane testified earlier that she first met Maxwell and Epstein in 1994 at the elite arts camp, where she was for the summer between 7th and 8th grade.

The late pedophile financier was a big donor to the institution, bankrolling the “Jeffrey Epstein Scholarship Lodge” on its campus.

The prestigious boarding school -- which counts Jewel, Josh Groban and Norah Jones among its alumni -- has previously said it stripped Epstein's name from the lodge and cut ties with him after learning of his 2008 child prostitution conviction.

Jane's ex-boyfriend, a fellow actor identified by the pseudonym "Matt," has now taken the stand.

He's testifying about what Jane, one of Maxwell's accusers, told him about her relationship with Epstein.

Matt described his girlfriend of eight years as "shaken, embarrassed, horrified," when she discussed her relationship with the pedophile.

"She would say, 'Matt, the money wasn't f--ing free," but didn't go into more detail, he said.

The first alleged victim to testify against Ghislaine Maxwell at her sex-trafficking trial cried when she was asked about being awarded $5 million from a Jeffrey Esptein victim compensation fund.

The accuser, identified by the pseudonym “Jane,” paused for about 30 seconds and wiped tears from her eyes with a tissue after she was asked by a prosecutor to describe what the cash meant to her.

“I wish I would have never received that money in the first place because of what happened,” Jane responded, her voice breaking.

Read more here.

Maxwell's defense attorney quizzed Jane, one of her client's accusers, about the many plotlines she acted out over her decades as a soap opera star.

They included: Being bullied, battling cancer, surviving a car crash, getting stalked by a serial killer and taking down a Mexican drug cartel.

"Not my favorite storyline," Jane told lawyer Laura Menninger, when asked about playing a prostitute.

"You're able to cry on command?" Menninger prodded, to which the witness replied, "Not really."

Jane later told Assistant US Attorney Alison Moe that "acting on television is not real," while testifying in court is.

One of Ghislaine Maxwell's accusers testified that Jeffrey Epstein brought her to famed journalist Mike Wallace's 80th birthday party in New York.

"I sang happy birthday," said Jane, who would have been about 15 at the time.

The acclaimed CBS "60 Minutes" correspondent, who died in 2012, appears to be one of the slew of celebs who hobnobbed with Epstein at one time.