Jurors were told Oakes was angry that he would only have limited access to his daughter.
Prosecuting counsel Stuart Trimmer QC told jurors there was "substantial hostility" between the two groups.
At the end of that, six jurors will be asked to decide the winner.
FORBES: In Billionaire's Legal Crusade Against Counterfeit Wine, Money Is The Least Of It
John Hueston, the federal prosecutor, chose not to insult the intelligence of the Enron jurors.
The pool of over 300 eligible jurors was cut down due to hardship reasons.
FORBES: Rajaratnam Trial Begins -- The Judge, The Jury and Early Defense Win
Earlier Wednesday, jurors were summoned to the courtroom for a clarification of their instructions.
By the time court adjourns Monday, the judge hopes to have 12 jurors and four alternates.
The company behind the theme park, Lapland Newforest Ltd, went into liquidation, jurors heard.
"It was not just sick entertainment, " federal prosecutor Hadassa Waxman told jurors on Thursday.
Prosecutors have told jurors Mr Valle had started taking steps to carry out his plans.
He said the jurors wrote down the amount they thought was fair and averaged it.
Arias, who testified for 18 days during the trial, could speak to jurors again in court.
"Jodi Arias killed Travis Alexander, " Arias attorney Jennifer Willmott told jurors in opening statements.
"Mr. Alexander did not die calmly, " prosecutor Juan Martinez told jurors in opening statements.
The defense wants jurors to believe that the murder was being committed at 10 p.m.
Jurors heard Wednesday, however, from Skakel himself that the group left his home at 8:15 p.m.
"The state brought many witnesses with a motive to embellish or outright lie, " she told jurors.
It may be several days before jurors get another look at Jackson's softer side.
"The truth is, Michael Jackson fooled everyone, " defense attorney Marvin S. Putnam told jurors.
Miss Halstead would later petition a judge for Mr Sweeney's early release, jurors were told.
BBC: Canal murders accused John Sweeney 'cut up girlfriends'
At that inquest in 1991, jurors heard Kevin and 94 others were dead by 15:15 GMT.
Though Judge Ito wasn't telling jurors took that Fuhrman took the Fifth, the inference was there.
His plea offer was rejected by the Crown, however, and jurors convicted him of murder.
He says that six of the nine jurors seemed ready to vote for the plaintiff.
In the end there will be 12 jurors seated with 6 alternates waiting in the wings.
FORBES: Rajaratnam Trial Begins -- The Judge, The Jury and Early Defense Win
The jurors in the Chicago court case were selected from an initial pool of 150.
Jurors at Taunton Crown Court will resume their deliberations on 11 further charges on Monday.
New Jersey sent out more than 1, 000 summonses to find 12 jurors for this trial.
Jurors will be brought in in groups of 75 and must answer an 80-item questionnaire.
But both Greenspun and co-counsel Jonathan Shapiro said jurors did their best under the law.
应用推荐