Jonathan Wesley Harris, 30, of Johnstown, was arrested as he got off a bus in Pittsburgh, according to the Lower Merion Township police and the Montgomery County district attorney.
RELATED: Former Playboy model strangled in Pennsylvania apartment
Harris, who reportedly has family in Philadelphia, was charged with first-, second- and third-degree murder along with robbery, theft and related offenses in the Aug. 22 slaying of Christina Kraft, 36, in Ardmore.
Court records show Harris, from Johnstown, Pennsylvania, had just been released from state prison on July 15. He was serving time on a list of charges including assault. Officials said he was staying with a sister in Southwest Philadelphia.
Authorities say he was the person of interest seen in the surveillance images released earlier this week.
An anonymous source called police after seeing the video on news reports, authorities say.
According to authorities, this person said Harris texted him or her around the time the former Playboy model was murdered and said he was at her apartment in Ardmore.
In a news conference held Wednesday afternoon, Montgomery County District Attorney Kevin Steele said Kraft died a violent death.
"Christina was beaten, and the beating was substantial. Her nose was broken, she had black eyes, there was a lot of blood," he said. "Then she died of strangulation. Something was put around her neck."
According to investigators, Kraft left her apartment on Sibley Avenue in the early morning hours of Wednesday, August 22 and used Lyft to go to the 1400 block of Chestnut Street in Center City Philadelphia.
Surveillance video showed Kraft meeting with Harris near South Broad and 13th streets, the D.A. said. A short time later, the two enter a vehicle.
According to investigators, records indicate the front door of the apartment opened at 3:08 a.m. and the back door leading to a terrace was closed at 5:19 a.m.
Kraft was killed during a violent struggle within that two-hour timespan, Steele said.
Kraft's body was discovered on the evening of August 22 during a wellness check by police.
Steele said he has not seen anything to indicate there was a previous relationship between Harris and Kraft, but he added the investigation is still ongoing.
"Whether it was a chance meeting or something else, I can't say," said Steele.
Meanwhile, police are also looking for 31-year-old Andre Melton in connection with a burglary at Kraft's apartment the previous weekend.
Investigators say designer bags and jewelry Kraft reported stolen were found at his Theodore Street home in Southwest Philadelphia. Steele said investigator do not yet know if this burglary and Kraft's murder are connected.
Kraft was a model who according to a booking page credits herself with a "tasteful photo shoot for Playboy that was beyond Hollywood glamour."
Her profile also lists photo shoots for Vanity Fair, Victoria's Secret, and Maxim.