Police in Portland, Oregon, were involved in a high-speed chase on Wednesday in pursuit of a murder suspect from Washington state who allegedly posted grisly pictures of his victim to the 4chan website after strangling her.

Officers pulled over 33-year-old David Kalac, who was driving the victim’s gold Ford Focus, but he then sped away. According to the Portland police, he then led officers on a high-speed chase across the Ross Island bridge and south on to Southwest Barbur Boulevard.

Police broke off the chase after he began swerving into oncoming traffic, and the car was last seen speeding south.

On Tuesday, Kitsap County police in Washington confirmed that they found the body of a woman in her early 30s just before 3.30pm on Tuesday afternoon, after having been alerted by a family member.

Just over half an hour earlier, a series of pictures was uploaded to 4chan. The pictures, which are extremely graphic, show a naked woman with marks of what appears to be strangulation around her neck. A cord, or possibly a shoelace, is pictured next to the body.

The pictures were accompanied by messages from someone claiming to have just killed the woman.

Users at first doubted the veracity of the pictures, with some claiming that the images were either faked or old.

A few messages later, perhaps in answer to the sceptical tone of the first few responses, the user who uploaded the pictures posted: “Check the news for port orchard Washington in a few hours. Her son will be home from school soon. He’ll find her, then call the cops. I just wanted to share the pics before they find me.”

Deputy Scott Wilson, of the Kitsap County sheriff’s office, told NBC’s King 5 News in Washington on Tuesday that detectives were investigating the photos, but could not confirm that they were photos of the victim.

There is an active murder warrant out for Kalac, and Portland police say they believe him to be armed and dangerous. Kitsap and Portland are about 180 miles apart.



4chan has long been infamous as one of the darkest corners of the internet. In turn, the darkest and most anarchic section of it has always been “/b/”, the miscellaneous category board. It is a roiling morass where users post horrifying, gory, often pornographic images.

Pictures – both real and fake – of horribly injured, dead or dying people are not necessarily uncommon. Comments are always no-holds-barred, and rape and murder jokes are the norm.

No joke is too off-key for /b/ and practically nothing is taboo, which might go some way to explain why, at first, most users derided the original pictures of the murder as fakes.

But even here, as it began to become clear that both the pictures and the messages that accompanied them were genuine, many – though by no means all – toned down their jokes, realising how sinister the original post was.

Site administrators began deleting threads containing the pictures, but others sprang up in their place, both on the /b/ board and on other parts of the site.

While many users still joked, others were clearly disturbed by the post. “Let’s make clear I and most people on this site think this is fucked up,” one said. “Beyond all the internet edginess very few of us condone murder.”