More Jacko Witness Contradictions

The brother of Michael Jackson's accuser was hammered by more cross-examination Wednesday, and said key points in his testimony contradicted an earlier account because "I was nervous when I did the interview."

The 14-year-old boy testified this week that he twice saw his sleeping brother being molested by Jackson, both times by walking upstairs into Jackson's bedroom at the singer's Neverland ranch.

Defense attorney Thomas Mesereau Jr. produced an interview the boy gave to sheriff's deputies in which he said he was lying on a couch pretending to be asleep when he witnessed the second molestation.

"I was pretending like I was sleeping. I was in his couch, the little couch," Mesereau quoted from a transcript.

Mesereau asked the boy questions about whether his account of the second molestation had changed.

"It was actually three times," the boy said.

Under tough questioning from Mesereau, CBS ' Manuel Gallegus reports the boy's memories seem to be falling apart little by little.

"The defense is effectively dismantling this witness on the stand," lawyer and court observer Jim Moret tells Gallegus. "We're hearing the story change.

"It's not simply a matter of the memory being different. The story is different."

Mesereau also asked him about what exactly Jackson was doing to his brother in the second incident and how he was touching him.

"I was nervous when I did the interview," the boy said.

"So because you were nervous you didn't get the facts right," the attorney asked.

"Yes," the boy said.

On Tuesday, Mesereau produced a transcript of grand jury testimony by a psychologist who interviewed the 14-year-old boy and reported yet another description of the second molestation with fundamentally different physical details.

Mesereau on Wednesday also challenged prosecutors' claims that the boys' family was held against their will at Neverland for nearly a month, getting the boy to acknowledge that the family left three times.

"How many times do you think your family escaped from Neverland and then went back so they could escape again?" Mesereau asked.

"I don't get the question," the boy said.

The boy later said he only considered the third departure from Neverland to be an escape.

The witness also gave an account of how his sister received alcohol from Jackson that differed from the version the sister gave in her own testimony.

The sister testified earlier that she drank wine with Jackson and her brothers in a wine cellar. But the boy told Mesereau his sister received alcohol from Jackson in his kitchen and it was vodka.

"It wasn't in the wine cellar?" Mesereau asked.

The boy said no.

Because the brother is such a key witness even small discrepancies could impact his credibility, reports CBS News Correspondent Steve Futterman.

The cross-examination of the accuser's brother began on Tuesday, when Mesereau got the boy to acknowledge that Jackson had not really shown him or his brother a particular sex magazine.

The boy appeared caught by surprise when Mesereau confronted him with his testimony from Monday that Jackson showed him and his brother an issue of a magazine called Barely Legal, which was displayed by District Attorney Tom Sneddon as a significant piece of evidence seized from Jackson's home.

The boy reiterated he was sure it was the exact magazine Jackson showed them in a suitcase full of magazines.

"Michael Jackson never showed you that magazine, Barely Legal, did he?" Mesereau said in an accusatory tone.

"Yes," said the boy.

"But when you look at the date, it was August 2003," Mesereau said, pointing out that the family left Jackson's Neverland ranch for the last time in March 2003.

"I didn't say it was exactly the one he showed us," the boy said defensively, adding later, "I said he showed us those type of magazines."

Jackson, 46, is accused of molesting a 13-year-old cancer survivor at Neverland in 2003, giving him alcohol and conspiring to hold the boy's family captive to get them to rebut a damaging TV documentary in which Jackson said he allowed children to sleep in his bedroom.

Jackson's defense contends the family has a history of filing false claims to get money.

On Tuesday, the brother said under cross-examination that he lied under oath in a deposition for another case when he swore that his mother and father never fought and that his father never hit him.

"Did someone tell you to lie in the J.C. Penney case?" the lawyer asked, referring to a lawsuit brought by the boy's mother against the retailer over an encounter with security guards.

"I don't remember," the boy said.

Asked to tell the jury why he lied, the boy said, "I don't remember. It was five years ago. I don't remember nothing."

The allegations that the father abused the family surfaced later during the parents' divorce.