Closing arguments in defense of Los Gatos mom Shannon O'Conner expected to begin Monday

SANTA CLARA COUNTY, Calif. (KGO) -- The prosecution wrapped up its second day of closing arguments Friday in the case of Shannon O'Connor, the mom who's on trial for the drunken sex parties involving teens at her home.

O'Connor faces 63 counts, including child endangerment and furnishing alcohol to minors.

Jurors heard testimony from dozens of victims throughout trial, and a meticulous two-day closing argument breakdown by the prosecution of alleged alcohol and sex-fueled teen parties.

O'Connor's defense will now have to prove her "not guilty" plea beginning on Monday.

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Legal Analyst Steven Clark weighed in on the strategy.

"The defense is going to try to dismantle the prosecution's case bit by bit by breaking down each count and saying this really doesn't meet the elements of a child endangerment or other crimes," Clark said.

O'Connor faces decades in prison. She is charged with more than 60 counts of child endangerment and furnishing alcohol to minors, among other crimes. The teens allege she hosted parties, at which she offered alcohol and encouraged them to perform sexual acts with each other.

O'Connor has not spoken in court, opting not to testify publicly, rather than making her comments through the media.

She told our partners at the Mercury News during a jailhouse call in December that she feels responsible, but added, "I'm trying to be a concerned mother. I knew that these kids were drinking. I knew these kids were having sexual relations, whatever that may be. I was trying to make sure that they were being safe. People can look at that a few different ways."

RELATED: Bay Area woman charged with throwing secret teen parties with alcohol, sex

Clark said the jury cannot use any of this in their deliberations. They have an interesting decision, including whether or not to convict O'Connor of some crimes, but not all of them.

"I wouldn't be surprised to see a split verdict in this case, where the jury comes back guilty on many of these, particularly the smaller crimes involving furnishing alcohol," Clark said. "But the defense is going to try to convince them that she does not belong as a sex offender. And if they can win the counts involving the sex offenses, that would go a long way in this case."

Just like closing arguments, Clark said deliberations may take a long time, given all the counts in this case.

He expects a verdict may take up to a week.