Police say a man’s truck was stolen, abandoned in downtown Seattle, and then stolen again before it was found early Tuesday morning.

On Sunday, police say the truck’s owner was parking in a lot near 1st Avenue and Union or Pike Street when an armed man walked up to him and ordered him out of the truck. The man got out of the truck and stood in front of it, trying to keep the suspect from fleeing, but the suspect hit the man with his truck knocking him to the ground, according to police.

Police say the carjacker then ditched the truck near the Washington State Convention Center at 7th Avenue and Pike Street later that night.

Around 1 a.m. to 2 a.m. Monday, police say two men and a woman saw the truck, which was still running and had its lights on, and got in and drove it away, according to police.

”They just hopped in it and took advantage,” says SPD Robbery Detective Mike Magan.

Police eventually found the car the next day and arrested the group for auto theft and possession of stolen property, according to police.

“It’s a strange case," Magan said. "There’s no honor among thieves.”

Even before Tuesday's destructive May Day protests, police say they saw an increase in graffiti that led them believe anarchists were planning to cause trouble.

In addition to various spray painted anarchy symbols, officers found graffiti calling for a "general strike" on May 1 and even a message that read "kidnap the mayor."

With the graffiti, the vandals "made it very clear they were going to cause trouble," according to SPD Det. Chris Young.

"There was a lot of (anarchist tagging) all of a sudden in March," Young said. "They were pretty indiscriminate. They would hit anything."

Young said a man and woman spray painted an anarchy symbol on a pillar at the Russell Investment Center, which police say will have to be partially replaced at a cost of nearly $14,000. Police believe the same couple did $700 worth of damage at a downtown bank.

"They covered an ATM with paint and did a bunch of other graffiti," Young said.

Downtown Seattle was getting back to normal Wednesday morning a day after Black-clad protesters using sticks and bats smashed stores and automobile windows during May Day demonstrations that turned violent in Seattle. During the clashes, police recovered homemade incendiary devices made from toilet paper rolls and fruit juice boxes.

Seattle Mayor Mike McGinn issued an emergency order Tuesday, allowing police to confiscate items that could be used as weapons. By Tuesday night, police had seized about 70 such items, including one with at least a dozen cigarette lighters taped together.

"Our concerns were real, and I think we handled it as best we could," police Sgt. Sean Whitcomb said late Tuesday night. "These were, for the most part, peaceful demonstrations. It's such as shame that such a small group of individuals were able to hijack the event and dilute the message to one of violence. They came here and they smashed it up."