The case has seen a number of twists and turns.
The 55-year-old Boeing engineer was having an affair with a Russian woman he met on the Internet. He planned to obtain phony passports, fake his own death and move to India with the other woman.
His plan was to leave behind $3.6 million in insurance policies for his wife and children.
Anna Sudakevich, of Philadelphia, testified she did not learn the victim was married until Parth Ingle came to her house looking for his father.
Prosecutors said financial gain and retribution were the motives for the brutal killing. Parth Ingle owed about $43,000 in debt.
Parth Ingle and his sister Avnee Ingle, 28, were tried in 2011 for installing the spyware e-Blaster on the family computer to capture their father's passwords in an attempt to keep the family together. Parth Ingle secretly put a GPS tracking device on his father's car. He was found guilty; his sister acquitted.
Prosecutors have attempted to have Parth Ingle's attorney, John Kusturiss, removed from the case. Kusturiss has known the defendant for a number of years. Parth Ingle is a close friend of the lawyer's son.
In court on Thursday, Bhavnaben Ingle sobbed as the three to four minute 911 tape was played. Parth Ingle looked down at the floor.
Operators asked if Bahavnaban was the victim's wife, if she knew of weapons in the house and if she knew what happened.
"I don't know, I didn't spend much time in there," she cried on the phone. "I just came out."
Contact staff writer Mari A. Schaefer at 610-892-9149, email@example.com or @MariSchaefer on Twitter.