Five hours after the shooting report that brought armored trucks and SWAT teams out to a Davis neighborhood, officers seemed to be moving in on a house.
Two people, a man and a woman, were found dead inside.
According to police, a man phoned in a report of two people shot in his Glacier Drive home around 6:50 p.m. on Thursday, and that's when he stopped talking to authorities.
Helicopter loudspeakers were just one of the ways investigators tried repeatedly to contact him, but to no avail.
While no name was released to the public, police said they did know the name of their suspect and had information that he had access to a rifle and other weapons.
That's one of the reasons such a wide perimeter was taped off around the home. It's also one of the reasons why four houses around the suspect's home were evacuated.
Robots were at the ready to get a mechanical eye on the situation without putting officers in harm's way.
Davis police share a SWAT team with the West Sacramento police department, so that team was called to the scene along with a county bomb squad unit and officers from Woodland.
The MRAP or Mine Resistant Ambush Protected vehicle that Davis gave to Woodland returned to town to help protect officers as they tried to decipher the situation.
A second MRAP from Sacramento was also on hand.
Police say they had no history of 'calls for service' at the home they had surrounded Thursday night into early Friday morning.