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You're welcome. This may be the best of the five articles. It is the longest and gives info that goes both ways.

Anatomy of an Incident: Guns seized in Medford(OR)

Statements that cast a bad light on David Pyles.

Incident reports from Medford police and the Jackson County Sheriff's Department describe verbal outbursts and "a declining state of mental health" seen in slipping personal hygiene and appearance, and a "somewhat disorderly and uncooperative" exit when the man was placed on administrative leave on March 4.
Deputy Chief Tim George wrote that officers who attended a meeting with OSP and the sheriff's office about Pyles on March 7 told him that "Pyles was somewhat disorderly and uncooperative with supervisors and staff" at the ODOT offices when he was escorted out. "There was fear among the employees of ODOT that Pyles could cause them harm," George wrote.
Medford police Sgt. Scott Clauson wrote that he was told Pyles had left the building, but went to the back door and began banging on it before eventually leaving. Clauson's report also notes that Pyles had become "increasingly disgruntled over the last six months" and that coworkers said he was prone to frequent outbursts.

Statements that support David Pyles.

Pyles declined to discuss with the Mail Tribune any outbursts or other aspects of his behavior at work, which he said was part of his dispute being handled through the union. He denied having returned to bang on a door after being escorted out of the building on March 4.
Marmon told the officers that Pyles hadn't made any specific threats of violence, but he was concerned about "possible retaliation or workplace violence," Cicero's report said.
Retzer and Lt. Rich Fogarty went to the ODOT office on Antelope Road at about 7:45 p.m. to examine Pyles' desk and computer. Retzer's report said he found no papers about workplace conflicts. The computer's hard drive had documents in which Pyles discussed harassment happening at work and a worker's compensation claim about "anxiety, depression and physiological aliments caused by his workplace stress."
Retzer said he didn't find any threats toward Pyles' coworkers or supervisors or any indication that Pyles would harm himself.
At 9:24 p.m., state police sent a teletype to law enforcement across southwest Oregon asking officers to be on the lookout for Pyles and warning of potential officer safety issues. It warned that he might be unstable and had made "concerning statements." "There is no PC (probable cause) for arrest and no specific threat," it read.

That is not exhaustive. There is also quite a bit about how the police began watching the gun purchase data base to see if his name popped up and other disturbing things about how they conduct their business and just how his co-workers got all stirred up about his firearms purchases. ie the police had to let his supervisor know who then put a bug in the ear of the co-workers or something along those lines.