A Boston man was charged with first-degree murder in the death of Caryn Bonner on Tuesday, more than 25 years after the 34-year-old was found stabbed to death in her Dorchester apartment.

After remaining an unsolved case for decades, the Suffolk County District Attorney’s Office connected 54-year-old convicted murderer Cornell Bell to Bonner’s killing through DNA evidence, the district attorney’s office said in a Wednesday press release.

Bell pleaded not guilty to the murder charge during his arraignment in Suffolk County Superior Court on Tuesday.

“We never consider a homicide case unsolvable, no matter how much time has elapsed,” Suffolk County District Attorney Kevin Hayden said in the release.

Bonner’s sister found her body in the kitchen of Bonner’s apartment at 467 Columbia Road on May 19, 1999, the district attorney’s office said. At the time, Bonner’s sister hadn’t heard from her in several days and was checking up on her.

For a time, Bell was on the run from police. He was added to Massachusetts State Police’s Most Wanted List after being charged with the murder of his estranged girlfriend, Michele Clarke.

Clarke was killed in Weymouth on Aug. 19, 2017. After harassing Clarke at work, Bell went to her home and waited for her to return, according to State Police. A fatal confrontation ensued when she got home. Bell then fled in her truck, which was recovered in Florida days later.

A Norfolk County jury found Bell guilty of murdering Clarke in July 2022, the district attorney’s office said. He was sentenced to life in prison without the possibility of parole and is currently serving out his sentence.

After Bell was convicted, his DNA profile was entered into the FBI’s national DNA database, the district attorney’s office said. As a result, investigators discovered that his profile matched DNA recovered from a cigarette butt found in Bonner’s apartment.

Following the breakthrough in the case, investigators revisited other evidence in Bonner’s killing, the district attorney’s office said. They then linked one of Bell’s fingerprints to a latent fingerprint found in blood in Bonner’s apartment using crime scene photos.

The district attorney’s office did not speak to a potential motive in Bonner’s killing.

In the wake of Bonner’s death, her mother described her to The Boston Herald as a happy, kind-hearted person with many friends, whose favorite activity was watching sports on TV. Bonner’s neighbors told the newspaper she was known for running errands for older adults in her apartment building.

Bell is due back in court on Feb. 19.

He set out to own Manhattan.

Now he’s coming for Massachusetts. 

Celebrity real estate broker/diehard Patriots fan Ryan Serhant is bringing it all back home.

SERHANT., (styled with a period), his real estate brokerage featured on Netflix’s “Owning Manhattan” is expanding to Massachusetts, with a Boston office and “more than 15 agents,” per his Jan. 14. announcement. 

“It’s exciting for me to get back to my roots,” the “Million Dollar Listing” star — whose firm deals in million-dollar listings — said. 

“Boston is the biggest little city in the world. It’s built on culture, built on the ethos of the original founders of the United States — this get-up-and-go attitude. That’s what I love so much about Boston. It’s in everybody’s blood to get up and go and make things happen.”

A noted workaholic with a get-up-and-go-attitude himself, Serhant spoke of his Boston launch from the back of his car in New York City — presumably with  Yuriy the driver, who has his own fandom. 

For the initiated, if there’s such a thing as a real estate celebrity, it’s Serhant.

He’s a house-blend of Wall Street and Broadway. A savvy businessman, with the big personality of TV show host — magnetic Andy Cohen it-factor with Bostonian dry humor and an “I can sell ice to a snowman” sales attitude that revs up employees. 

Watching “Owning Manhattan,”  they look like they’d follow their silver-haired leader into battle if he raised his heavily-braceleted wrist. The knight’s steed? Social media. He’s harnessed the power of Instagram — with some 3 million followers— and social platforms. He also studied theater.

Two years after earning his broker license, he landed on Bravo’s “Million Dollar Listing,” then got his own Bravo spinoff shows.

In 2020, the author of three books founded SERHANT. He sells New York City apartments that look straight out of “Succession.” He repped Andy Cohen in the sale of his New York apartment, and Dave Portnoy’s Florida home.

Now that he’s “planted his flag” in Rhode Island andConnecticut, he’s expanding his empire back into what he considers his home state. “All my childhood memories” are here, he said. “My first date was at the Topsfield Fair.”

“When you walk to my office in New York City, the first thing you see is a Tom Brady autographed helmet. I have a football from the Falcons/Patriots Super Bowl signed, I have a lot of Patriots gear and jerseys,” he continued. 

He took some time to chat about what the Boston office has in store:

You’re opening an office in Boston, but you’ll sell properties all over Massachusetts?

This is our 15th state. We’re starting in Boston with an office in Back Bay. We’re bringing our platform, our AI technology, ourapp, our brands, our production studio, our creative agency …  It’s a big moment for us.

We’ll be selling all over Massachusetts. We have a lot of incredible listings that will come to market over the next couple days. They probably won’t be on the website site by Wednesday— the way licensure works, it takes a second. But I love Beacon Hill, the Seaport, South End, and all the neighboring suburbs, North Shore, South Shore. My little brother’s in Walpole. So I’m looking forward to painting Massachusetts SERHANT. blue.

You’re already in Connecticut and Rhode Island. Are you going to expand into other New England states?

They’re on the roadmap, yes.

We have some beautiful properties. We’re growing very fast in Rhode Island. A lot of those agents also have clients in Massachusetts, so Massachusetts makes a lot of sense for us.

Season 2 of “Owning Manhattan” just released on Netflix last month. Any chance we might be in Season three?

“Owning Boston”? Maybe. Depends on the properties. Every season so far, we’ve shown off a little bit outside of New York City. The show is predominantly based in Manhattan, obviously. But, last season we launched some beautiful properties in Miami, and the show came with us to South Florida. So we’ll have to see.

You said your parents moved, but you still have family here. Tell me a bit about your local roots. 

I was born in Houston, we moved around a bit, then settled in Topsfield. I went to Proctor Elementary School in Topsfield, then Masconomet Regional for junior high and Pingree [in South Hamilton] for high school. I went to Hamilton College, a liberal arts school in upstate New York. 

My dad worked at State Street. My [brothers work in finance]. I was the odd one out who got into real estate by way of theater. 

So you learned to drive on Rt. 128?

Hilarious. My first real frustration [with driving] was the Big Dig. Remember the Big Dig?

Oh my gosh. That thing was endless, forever and ever.  I mean, learning to drive on those roads is a thing. You go out to the Midwest where a lot of roads are straight, and you’re like, “These people have it way too easy. These roads were not carved by horses in any way, shape or form.”

And how did you get into real estate?

Real estate was never part of the plan. I went to school for theater and for English literature. When I graduated in 2006, my grandfather died and left $20,000 to each [grandkid.] That was the most money I’d ever seen. I was like, “I’m going to go to New York City, do Broadway — that money will last me 10 years.” It did not last me 10 years. It lasted me a lot less.

So I needed a job or I had to move home, which I didn’t want to do. And a friend of mine said “Sales is very similar to the skills you learn in theater. It’s listening to reply, listening to response, memorizing information, being a real human in front of people. Just get your real estate license.” So I did that in 2008.

What do you love about it?

I love that it’s a limitless career. The harder you work, the luckier you get. I love that every day is different. I love that you can be an inventor, a builder, a branded marketer, a negotiator, a therapist all at the same time. It personifies  the American Dream.

How did you find your entertainment/celebrity/ real estate broker niche?

I got my real estate license in 2008, and after a year and a half, I went to an open-casting call for a reality show on Bravo, “Million Dollar Listing New York.” I was cast in 2010. We did that for a decade, and that was around the same time Instagram was invented. Instagram and Twitter and Facebook were a way to connect with those show fans, and clients. I was just able to build that profile.

I’m a businessman first, and I use social media and various forms of media to put out our message and our profile. 

Will you be coming to Boston soon?

I was just there, actually. My little brother lives in Walpole. He and his wife just actually opened a gym in Walpole called Lifted Fitness, so I went to their opening, and went to one of their classes. 

Interview has been lightly edited and condensed. 

Lauren Daley is a freelance writer. She can be reached at [email protected] and @laurendaley1.

Lauren Daley is a longtime culture journalist. As a regular contributor to Boston.com, she interviews A-list musicians, actors, authors and other major artists.