LONGVIEW, Wash. -- The man who gunned down the parents of his ex-girlfriend in Longview Tuesday had a violent history, especially when it came to women he was dating, police said.

Police said on Tuesday, Scott went to his ex-girlfriend, Casandra's home in Longview, seeking revenge over their recent breakup. He shot her parents, Kathy and Bob Tubbs, in their driveway in the 3200 block of Oak Street, just after 9 a.m., police said.

Both were rushed to St. John's Hospital where Kathy, 45, later died, police said. Bob was listed in satisfactory condition.

Scott made his first court appearance Wednesday afternoon charged with aggravated murder and attempted murder.   

The Associated Press and Longview Daily News reported that a family friend said Scott sent a text message to Casandra on Tuesday morning that said, "I hope you like the present I left for you at the house."

Police captured Scott, 19, less than a mile away after a short manhunt.

KGW has obtained documents that show Scott had a history of assault charges and threatening claims. In 2005, he pleaded guilty to assaulting another girlfriend while arguing over a sweater he believed was his.

That arresting officer said on the way to jail, Scott threatened to kill him. The officer wrote "I asked Scott if he was threatening me. And he replied, 'you bet I am. I'm going to (expletive) find you and kill you'."

Meantime, in Tuesday's shooting, a close friend, Krista Raschella, told KGW she knew that Scott planned to confront his ex-girlfriend's parents, who he had lived with for a time while he was dating 17-year-old Casandra. When they broke up recently, people close to Scott said he was kicked out of their home. And he told a friend he was going to bring a gun to the Tubbs' home to intimidate them and get his belongings.

Moments later, Tubbs says, Scott walked in, yelled an expletive, and opened fire, wounding him and killing his wife Kathy. 

“Her grandkids were like her kids.  They were her number one.  She’d give you gifts.  You wouldn’t have to do anything and she would reward you with gifts,” said Travis Oliver, a friend of the family.

Witnesses said it looked like the parents confronted Scott in the driveway and Kathy may have been trying to run for help when Scott shot her.

Scott was booked in the jail on murder and attempted murder charges and his bail was set at $1 million. Raschella also said Scott had a long battle with mental concerns, including bi-polar disorder.

On Wednesday, police alerted KGW that they were still searching for the handgun used in the shooting, along with a dark blue or black jacket with red trim. They could have been tossed by the suspect when he fled the shooting scene. Police warned that if someone finds the evidence, they should not touch it; just call 9-1-1.

St. Helens Elementary School was put in lockdown around 9 a.m. because it was located near the shooting scene, but the lockdown was lifted before 10:30 a.m., according to school officials.

Scott told investigators he was upset over his recent break up, went for a walk on the advice of his mother, and blacked out.  That story left people who know Scott speechless.  But no matter which of the two stories is true, a mother is dead, her husband wounded, and a family is changed forever. 

“Hopefully they’ll pull through it together, you know, stick together as a family because they really need it now,” said Rhonda Arnoth.

(KGW reporter Mike Benner also contributed to this article.)