PLEASANTON — A San Jose man was arrested in connection with the fatal shooting of a mother and son inside a Pleasanton home on Wednesday, Feb. 18, authorities said.

The victims were identified as Lori Simonds, 67, and her son, Evan Simonds, 28, both of Pleasanton, according to the Pleasanton Police Department in a press statement.

Police said detectives identified 31-year-old Allen Swadley as the suspect and obtained a warrant for his arrest.

During the late evening hours of Thursday, Feb. 19, the San Jose Police Department contacted Swadley during a traffic stop after an automated license plate reader notification.

The suspect was detained without incident and later transferred into the custody of Pleasanton police.

Swadley was subsequently booked at Santa Rita Jail on two counts of murder.

The shooting was reported shortly after 10 a.m. Feb. 18, when Pleasanton police officers responded to reports of gunshots at a home in the 3100 block of Joanne Circle, authorities said.

Officers entered the residence and found both victims suffering from multiple gunshot wounds. They were pronounced dead at the scene.

Investigators said multiple firearms were recovered from Swadley’s vehicle and residence. Police said the weapons will undergo further testing to determine whether any were used in the crime.

Authorities said Swadley had a recent dating relationship with a family member of the victims and has no prior criminal history.

Police also stated the shooting appeared to be an isolated incident and that there was no ongoing threat to the community.

“This outcome is the result of our detectives working nonstop on this case, with support from our Real-Time Information Center and allied agencies,” Police Chief Tracy Avelar said in a statement.

“We appreciate the patience of our community as we worked through a rapidly evolving investigation, and I’m proud of the work done to keep the community safe,” Avelar added.

The motive and circumstances surrounding the shooting remain under investigation.