San Francisco police confirmed that a suspect had been detained in connection with the case but did not provide a location for the arrest or provide a suspect's identity.
The four victims were discovered Thursday morning after a relative reported that 'something might be wrong'.
Sherrill, who is retired, said he believes the home is occupied by the family, which has rented the home for about five to six years.
Salvador Vasquez-Oliva was booked in the Sacramento County Main Jail on homicide charges after he was caught at an apartment complex on Pierce Street and Golden Gate Avenue, officials said.
"This does not appear to be a random act", Matthew said. They have also not said what relationship Vasquez-Oliva has, if any, to the victims.
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Sacramento police have not provided details about how the victims died or a possible motive.
A neighbor of the home on 35th Avenue, said a couple with two children, a girl 14 and a boy 11, lived at the house. A suspect has been detained in San Francisco.
A relative told via NBC that the wife was going through a 'very hard divorce'.
Don Sherrill, whose home shares a back fence with the victims' house, said he and his wife, Joanne Sherrill, often heard children playing in the backyard or using an inflatable pool. A basketball hoop sat in the middle of the home's driveway.
There were no reports of shots fired or other problems at the home until the relative called police to report concern, Heinlein said. All our hearts here at City hall go out to the victims, their families, schools and community. It's not clear when the four victims were killed. Police received a call about 7 a.m. from a relative asking officers to check the welfare of the victims, according to Sgt. Bryce Heinlein, a spokesman for the Sacramento Police Department. 'And as a city we stand ready to embrace the families and the communities in any way we can to help. The murder occurred on the 1100 block of 35th Avenue.