SAN DIMAS (CBSLA) — A 23-year-old Upland has been arrested in the stabbing death of a woman and her dog near Lone Hill Park in San Dimas Thursday afternoon.

Jeanne Edgar, 66, was killed Thursday near Lone Hill Park in San Dimas. (Edgar Family Photo)

According to the Los Angeles County Sheriff’s Department, deputies responded to a report of an assault with a deadly weapon near the intersection of Shellman Avenue and Renwick Road at about 1:35 p.m.

“The call indicated a woman was screaming and later updated indicating a woman was being stabbed,” the department said in a statement.

When deputies arrived on the scene, LASD said they found 66-year-old Jeanne Edgar of Glendora lying unresponsive in the street with multiple stab wounds. She was pronounced dead at the scene, along with her dog, Sashi, that was found lying next to her.

Edgar’s family did not want to talk about the gruesome crime on camera, but said in a text message that they were heartbroken.

Deputies then learned that the suspect had also tried to attack a man in his 30s at knifepoint.

“From what I gathered from my son-in-law, Joe, he actually came after him, first with the knife,” Tony Page said Thursday. “My son-in-law was able to get to his vehicle safely.

“At that point, the guy started attacking the lady that was walking her dog, started killing the dog with the knife then turned the knife on her and started killing her,” Page continued. “He, at that point, got out of his vehicle, found a rock, threw the rock, hit the suspect in the face, knocked him out and right shortly after that the authorities arrived.”

According to LASD, the woman and her dog were discovered at Lone Hill Park near the intersection of Shellman Avenue and Renwick Road. (CBSLA)

Deputies said a knife was recovered at the scene.

Drew Ashley, who lives nearby, said the attack was very troubling for the neighborhood.

“What everyone takes for granted is thinking you have safety no matter where you go,” he said. “Sometimes you gotta watch your surroundings, have some situational awareness.”

Deputies arrested the suspect, identified as Ricardo Saldivar. He was taken to a nearby hospital where he was evaluated for head injuries and then released into custody.

Saldivar was booked into jail on suspicion of murder and attempted murder. He remained in jail on $2 million bail and was scheduled to be arraigned next week.

The motive for the attacks was not immediately clear.