A 17-year-old boy also found in the home was suffering from severe head trauma and was "barely alive," said Curtice. The teen was taken to a hospital where he underwent surgery. His condition wasn't known.
Singh fled to the United States after he was accused of killing lawyer Jaleel Andrabi in Indian-controlled Kashmir's main city, Srinagar.
Andrabi disappeared in March 1996 at the height of an anti-India uprising, and his body was recovered 19 days later in a local river. He had been shot in the head and his eyes gouged out.
An investigation into the killing blamed Singh and soldiers under his command and also accused Singh of involvement in the killing of six other Kashmiri men.
Singh, 47, was arrested by Selma police in February 2011 when his wife reported that he had choked her, Selma Police Chief Myron Dyck said shortly after that arrest. After Singh was taken into custody, police discovered that he was being sought in India.
Dyck said at the time that he could not keep Singh in custody on the murder charge without a warrant from international authorities.
Several days later, India requested that the United States arrest and extradite Singh. It wasn't clear on Saturday why Singh had remained free since the request.
A request for comment from the Consulate General of India in San Francisco on Saturday was not immediately returned.
Dyck didn't immediately return a call seeking comment Saturday about the 2011 arrest, and Selma police referred questions about the apparent murder-suicide to Fresno County sheriff's officials.
Selma police last had contact with Singh about two months ago when he called to complain that reporters wouldn't leave him alone because of the murder warrant, Fresno County Sheriff Margaret Mims told the Fresno Bee (bit.ly/KpCPEq ).
Singh owned and operated Jay Truck Lines, a trucking company in Selma. Alli Adan, a driver for the company, said he spent time with Singh this past week, including Friday night, and Singh acted normally.
"He was a nice guy," Adan told the newspaper. "I couldn't believe it because I didn't think he could do something like this."
Intellpuke: You can read this Associated Press article, filed from Selma, California, in context here: www.guardian.co.uk/world/feedarticle/10281769