Two people are dead, including a Walnutport man and a woman formerly of Palmerton, after a murder-suicide Saturday.

Eric Messick, 33, of Walnutport, and Emily Fatzinger, 25, of Pike County, were pronounced dead just after 10 p.m. inside a residence in the 4100 block of Lanark Road in Upper Saucon Township.According to investigators, the duo broke into the residence and barricaded themselves inside following a police chase.Just after noon on Saturday, an Upper Saucon Township officer attempted to stop Messick and Fatzinger, who were both wanted for parole violations, on Route 309.The duo fled and eventually got out of their vehicle in a construction zone, resulting in a foot chase from the officer, Lehigh County District Attorney Jim Martin said in a news conference Saturday night.During the chase, the suspects fired a shot at the officer, who then halted the pursuit.Authorities said Messick and Fatzinger entered a home in a nearby development and asked a male occupant for his car keys.They also encountered a woman on her porch, asking for her car keys, before eventually barricading themselves inside the home on Lanark Road.Edward Petro told The (Allentown) Morning Call that he saw a shadow cut across his wall, then a second shadow."I'm waiting for them to ring the doorbell but the doorbell doesn't ring," he said. "The guy comes in with a gun in his hand - not in his waistband, in his hand. And I just stood in my tracks."He said the man demanded his car keys, and he quickly came up with a story that his mechanic was in the process of fixing the car and still had the keys."He was in a hurry," Petro said of the gunman, who several times asked for the car keys. "I kept telling him I don't have the keys."Either before or after that, the pair went to a home where a woman was sitting on her porch with her dog and again demanded car keys, then entered as the woman and her dog fled to a nearby neighbor's home and took her cellphone.Eventually they went to an unoccupied home, and police searching the neighborhood approached after hearing three gunshots inside the house. Police used a bomb robot and eight rounds of tear gas before entering to find the couple dead in the attic.Some residents were evacuated to the nearby Wedgewood Golf Course while others were urged to stay indoors and lock their homes as police swarmed the area, some in armored vehicles, as a helicopter searched overhead.After hearing three gunshots inside the home, emergency crews found the two deceased in the attic.Messick was wanted by Pocono Mountain Regional Police after stealing a vehicle during a traffic stop in April.He was the passenger in a vehicle driven by Fatzinger that was stopped at 1 a.m. on Route 390 in northern Monroe County. Police stopped the vehicle because Fatzinger did not dim its high beams.After Fatzinger was removed from the vehicle on suspicion of driving under the influence, Messick reportedly slid over to the driver's seat, and stole the vehicle.In 2013, while he was wanted on theft charges, Messick jumped into the Lehigh River trying to evade a bounty hunter and police officer. One week later, he was arrested after running into an oncoming South Whitehall police cruiser on Tilghman Street during a chase.Rush Township police arrested Messick in 2015 after an incident at Walmart.Messick was reportedly running around the store, causing a disturbance to both customers and employees.He was charged with terroristic threats, resisting arrest, simple assault, disorderly conduct, public drunkenness and harassment.While using a Princeton Avenue address in Palmerton in 2014, Fatzinger was charged with making methamphetamine at the Hotel Lafayette in Easton.She also received six to 23 months in jail after she admitted to conspiring to operate a meth lab in a car in 2013.Fatzinger's daughter was the subject of an Amber alert when Timothy Simcsuk abducted her from her grandmother's residence in 2013. Police found the child safe in a hotel room in Quakertown.The Lehigh County Coroner's office said autopsyies on both Messick and Fatzinger would be completed Monday.Upper Saucon Township Police Department is continuing the investigation with the assistance of state police and the Lehigh County District Attorney's office.The Associated Press contributed to this report.