He was accused of allegation for trying to strike up a romance with Sanjana, the sister of Anand Jon who was sentenced to 59 years.
Alvin Dymally was fined $1000 and ordered 120 hours of community service by Judge David S Wesley for contempt of court but was not sent to jail.
"Your actions delayed the proceedings in this case for some eight months, cost the taxpayers of this county tens of thousands of dollars and, frankly, were disgraceful," Wesley told Dymally, according to Los Angeles Times.
The judge said the evidence was clear that the juror gave his telephone number to Anand's sister Sanjana before the verdict. And that he had lied in court while denying the charges, the report said.
Dymally apologised saying he meant no disrespect to the court, "I am definitely, 150 per cent sorry."