Reshma, who was the suspect's fourth wife, used to live with her brother at the city's Hakimabad area.
Indian-American high school student Avi Goel has won the world championship at the International Geography Bee's junior varsity division held in Berlin, Germany, last month.
Police arrested 18-year-old Tyrone McAllister and a 16-year-old male juvenile on Wednesday for the attack on Sahib Singh Natt.
The two businessmen RP Vaidya and KP Vaidya had gone to Malaysia for business purposes and were abducted on August 3.
The incident, which was caught on a security camera, is the second such attack on a Sikh man in California's Central Valley in the last week.
British MPs have called on the Home Office to intervene and stop Shreyas Royal from leaving the UK when his father's work visa expires in September. Royal's father is not eligible to stay in the UK because he does not earn more than £120,000 a year.