SEATTLE -- Seattle police arrested a 37-year-old man Monday after three body parts found Saturday in a homeowner's recycling bin in the Central District were tentatively identified as those of a Renton mother of three reported missing after going on a date.
Police said at a news conference late Monday afternoon that they had taken John Robert Charlton into custody in the slaying of Ingrid Lyne, 40, a nurse at Swedish Medical Center.
Charlton, who was publicly identified by Police Chief Kathleen O'Toole, was booked into the King County Jail for investigation of homicide.
Charlton was taken into custody early Monday morning in Snohomish County, police said.
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His criminal history includes convictions for misdemeanor assault in King County in 1997 and misdemeanor battery in a 2009 case in Idaho, according to court records. He also was found guilty of possession of marijuana in 1997, with the charge deferred if he completed alcohol school and other conditions.
Police were able to identify Lyne because one of the body parts found in Seattle was her head, according to a law-enforcement source familiar with the investigation.
Homicide detectives learned Saturday that Lyne had been reported missing to Renton police and obtained a photograph they used to tentatively identify her.
Lyne's friends took to social media over the weekend with concerns about her welfare. They reported that the single mother went on a date in which she planned to attend Friday's Seattle Mariners game with someone she had met online.
Some of the social-media posts identified Charlton as Lyne's date. His name and photograph were posted on Facebook, before the announcement of his arrest, by people who identified him as Lyne's date.
Lyne wasn't home Saturday morning when her former husband planned to drop their children with her, police said. She was reported missing just after 10 a.m.
Her SUV was initially reported stolen and her cellphone, wallet and other personal items were found at her home in Renton, her friends said. Late Monday, police announced they found the SUV, a silver 2015 Toyota Highlander, in downtown Seattle.
Lyne's neighbors along Camas Avenue Northeast, a middle-class cul-de-sac where she lived with her three daughters in Renton's Upper Highlands, braced for the worst Monday before word of her fate was announced.
Seattle police detectives converged on the block with a mobile crime lab about 12:30 a.m. Sunday, said neighbor Edward Franceschina, 74, a retiree who lives across the street from Lyne.
"I saw them doing their thing," he said. "They came out with boxes and were here a couple of hours. I finally went to bed at 3 a.m. when they left."
Before leaving, detectives spoke with a resident at the end of the cul-de-sac whose home is monitored with a security camera, Franceschina said.
Franceschina described Lyne as a conscientious mother and friendly neighbor whose daughters often played with other kids in the neighborhood, including his grandchildren.
"We all see each other and know each other and keep an eye out for each other," he said of the neighborhood.
He last saw Lyne on Friday afternoon when she was getting mail from her mailbox.
"It was just an ordinary day," Franceschina said. "She said hi and I said hi back, just like any other day."
Lyne lived with her daughters in a brick-and-tan rambler with a lilac bush blooming out front. In a front window, all but one blind was pulled shut Monday.
Franceschina said he has lived in the neighborhood since 1976. Ingrid Lyne had lived across the street for about 13 years.
All three of her daughters, ranging in age from about 8 to 12, were born after Lyne moved into the house. Lyne split with the girls' father a couple of years ago, when he moved out of the home, Franceschina said.
Lyne and her husband divorced in 2014, King County court records show.
Reached by telephone Monday, her ex-husband, Phillip Lyne, said he couldn't discuss the matter.
When news of body parts being discovered in the recycling bin surfaced over the weekend, Franceschina said he feared the worst.
The body parts, which also included a foot, were discovered by the homeowner about 4 p.m. Saturday near 21st Avenue and East Pine Street. They were inside plastic bags, police said Monday.
The parts would have been placed in the bin late Friday or Saturday, a Seattle police spokesman said Saturday. The bin would have been emptied when recyclables were collected on the block Friday, the spokesman said.
The parts had been dumped in the bin, and police believe whatever had happened apparently did not occur in the neighborhood, the spokesman said.
The King County Medical Examiner's Office will officially determine an identity.
Seattle and Renton police served a search warrant on an undisclosed location in Renton, where evidence was recovered, police said.
A suspect -- Charlton -- was identified, police said. After being taken into custody, he was interviewed by Seattle homicide detectives before being booked into jail, according to police.
Another search warrant was served at an undisclosed location in Snohomish County.
(Seattle Times staff reporters Jessica Lee, Mike Carter and JoNel Aleccia and news researcher Miyoko Wolf contributed to this story, which contains information from Times archives.)