A 16-year-old Davis boy is being held without bail in the April stabbing deaths of longtime attorney and musician Oliver Northup and wife Claudia Maupin after police arrested him Monday.
Davis police would not disclose the youth's name and said he was taken into custody without incident at the police station.
He is the only suspect in this case.
The youth was to be taken to the Yolo County Juvenile Detention Facility, said Davis Assistant Police Chief Darren Pytel.
"We don't have all of the details," said Yolo County Chief Deputy District Attorney Jonathan Raven. "But if he's charged, he will likely be arraigned Wednesday."
Davis police announced the arrest Monday evening, a little more than two months after the night that investigators were called to the shocking scene at the couple's Cowell Boulevard home.
Mary Northup, Oliver Northup's daughter, got the news from Davis police just after 5:30 p.m. Monday.
With an arrest in the case that shocked the Davis community, Northup said her family could finally mourn.
"When I first heard, there was a feeling of relief," Northup said Monday. "He was murdered and not only murdered, but brutally murdered. Now I feel we can mourn that they're dead."
She recalled what her brother Jim Northup said after the arrest: "Now, maybe, we can get past this."
Davis police served search warrants at several locations earlier Monday, Pytel said, without elaborating. They were joined by FBI and California Department of Justice agents, Yolo County district attorney's investigators and officers from West Sacramento and Dixon.
Mary Northup said one of the homes searched Monday by authorities was just a couple of doors down from where her father and stepmother were slain.
She said she recalled seeing a moving truck outside the same home a couple of weeks after the killings.
The double slayings of Northup, 87, and Maupin, 76, stunned Davis. Family members had been worried after Northup failed to show up for a Sunday performance as a member of the popular local folk combo Putah Creek Crawdads.
Police discovered the bodies hours later, at 9:20 p.m. April 14, after family members asked them to make a welfare check.
The city's first homicide in two years brought the assistance of federal agents and forensics experts, state Department of Justice investigators and local agencies. At one point, more than 50 investigators were working the case. Davis police opened a tip line to help investigators chase clues.
"This is priority No. 1. This attacks at the very essence of what we think is secure: the home," Davis Police Lt. Paul Doroshov said in May.
But with no apparent clues, family, friends and neighbors were on edge, feelings that scarcely abated Monday night.
"Yes, we're relieved, but we're pretty shook up about it," said Barbara Adolay, a friend of the couple. She said her Cowell Boulevard neighborhood was talking about the arrest on an Internet forum they all share.
"I'm sort of scared by the idea that it's a random thing," she added.
For Mary Northup, relief is now replaced by painful, unanswerable questions.
"I thought, 'It's a 16-year-old. It's a kid. Why would a kid want to kill an 87-year-old father? My father would be the first to jump up to defend that kid," she said. "I'm sorry we've suffered for his poor judgment. But I'm also sorry for this young man who has ruined his life."
Call The Bee's Darrell Smith, (916) 321-1040.