8:43 PM: TV-viewing WSB’ers confirm in comments, that’s indeed what it was.

Tonight the Seattle Fire Department along with the King County Sheriff’s Office will be conducting a Night Time Hoist Helicopter Training Drill at the City of Seattle Joint Training Facility. The purpose of the exercise will be for firefighters to practice rescuing patients at night from a high rise building.

The drill is part of an All Hazards Regional Aviation Response Partnership which includes the King County Sheriff’s Office, Snohomish County Sheriff’s Office, the Seattle Fire Department and other regional agencies.

Beginning at 6 p.m. neighbors of the City of Seattle Joint Training Facility located at 9401 Myers Way South [map] will notice an increase in activity and noise until 9 p.m. The drill will involve the takeoff and landing of the King County Sheriff’s Guardian 2 Helicopter.

(One of more than half a dozen law-enforcement cars spread out over search area in Shorewood)
9:38 AM: We’re getting a few reports of the King County Sheriff’s Office helicopter Guardian One over the Shorewood area again. Just checked with KCSO spokesperson Sgt. Cindi West and she confirms the helicopter is assisting with a ground search, but no details just yet – so far it does not seem to be related to the recent search in that area. We’re headed that way and will update with new information when we get it.

9:55 AM: The search is centered even further south so at this point unless we receive information of it heading north, we’ll be focusing our updates on partner site White Center Now.

10:36 AM: Again, more details at that link (including 3 Highline Public Schools campuses taking precautions), but bottom line in new info from KCSO: Deputies pulled over a stolen car; someone inside had a car-theft warrant, and bolted.

10:43 AM: As updated on WCN – Sgt. West says the suspect is in custody, so this situation is wrapping up.

12:02 PM: We started this coverage as part of our earlier story about helicopter sightings – but it’s ongoing, so we’ve moved it here. Here’s the man deputies are looking for in the Shorewood Market vicinity (map) – escapee Alan Polevia:

He had been arrested on theft warrants last week and was being taken to Harborview Medical Center after apparent drug ingestion, when he bolted – still in handcuffs. (Read more about the case in this Monday update from CapitolHillSeattle.com.) KCSO spokesperson Sgt. Cindi West says Polevia’s head is now shaven, since that photo. He is described as 5’8″ and about 170 pounds. ADDED: Here’s what Sgt. West told us a few minutes ago:

12:26 PM: Just checked back in the search zone – deputies still staked out. Will check back again shortly.

12:52 PM: Still searching. We’ll update if and when he’s found. If you see him – call 911.

1:41 PM: See comments for some reports of schools that took precautions, though there is no report at this point that he was seen anywhere near a school. We’ve got an inquiry out to the district for a topline report on public schools’ status. Meantime, we looked up Polevia’s background. In November 2006, he was found guilty of third-degree assault for an incident involving him and his father getting kicked out of Poggie’s in The Junction, then going across the street and attacking a man outside Talarico’s with a beer bottle and a tire iron.

1:51 PM: Two more updates. First, from Teresa Wippel at Seattle Public Schools: “Sanislo, Roxhill, Arbor Heights, Sealth/Denny, Boren STEM, Highland Park, West Seattle Elementary” were under “shelter in place” at least for a while – she’s checking on who still is. Second, we are reminded by the West Seattle Block Watch Captains Network leadership that Polevia has one more West Seattle tie: He is the suspect arrested – but apparently to date not charged – in connection with the theft case related to the 36th/Morgan nuisance house in September.

2:12 PM UPDATE: Wippel says no one (in Seattle Public Schools, anyway) is in shelter-in-place – they’re all allowed to end their days as usual.

3:06 PM UPDATE: From Sgt. West at KCSO – an updated photo of Alan Polevia:

4:23 PM UPDATE: Just checked in with Sgt. West again; he’s still on the loose, no new updates. She is researching a case that put him in jail for a short stay in December – we saw that on the King County Jail Register, a four-day stay for investigation of burglary and for a “failure to appear” case involving theft, for which he had spent a day and a half in jail a week and a half before that. The jail register also shows his two-day stay in the 36th/Morgan related case, for investigation of stolen-property possession.

11:13 AM UPDATE: Mystery solved. Seattle Police Det. Renée Witt tells WSB that SPD was “conducting a training exercise with Harbor Patrol and Guardian One.”

11:21 AM UPDATE: Now we hear the aforementioned search has brought the helicopter to the Arbor Heights vicinity. More on that as we get it.

11:28 AM UPDATE: According to KCSO’s Sgt. Cindi West, the search is related to an escape reported in regional media last week – a handcuffed man wanted on theft warrants, who escaped February 25th while being taken to Harborview Medical Center post-arrest because he was believed to have ingested drugs.

11:39 AM UPDATE: Multiple KCSO units (including SeaTac and Burien Police, both of which are part of the Sheriff’s Office) on the ground in and beyond the Shorewood Market vicinity. Traffic is still getting through.

11:59 AM: We’re going to break this story out in a minute since the search is ongoing and we have photos and video to add. NEW ONGOING STORY – GO HERE.

11:58 AM: We also reconfirmed with Seattle Police public affairs that further investigation revealed *no* robbery.

4:10 PM: Thanks for the tips about the helicopter. The only thing working in the area right now is that police are investigating a suspicious vehicle and one possible suspect in the Roxhill Park area. NO new robberies or other crimes – and they’re not saying exactly what was suspicious about this car. At one point, they were checking out three cars and eight people – but Det. Jeff Kappel tells us only one vehicle and one 18-year-old remain under investigation. More as we get it. We had already been to the scene to check it out before the helicopter(s) turned up – have added a photo from that stop – and have since gone back to see if there’s anything new.

4:40 PM: The helicopter departed; the vehicle was being towed from the park.

(Added 10:40 pm – photo from neighbor who reports casings found in her neighborhood)
FIRST REPORT, 9:45 PM: We’re getting multiple reader reports of possible gunshots heard in Highland Park – no shootings on the 911 medical-call log, though – and a helicopter (believed to be the law-enforcement Guardian One) is overhead. The scanner indicates police are investigating – so far they have not found anything.

9:56 PM: Co-publisher is in the area and says Guardian One has left. Meantime, police are still checking out various areas where people reported hearing the possible gunfire, but no indication they’ve found any evidence so far.

10:15 PM: Nothing new, and the scanner traffic on this has quieted down. Earlier via the radio, SPD was reported to have checked with the county to see if anything had happened on their side of the line – the answer was no. We’ll follow up a bit later to see if anything ever turned up.

10:39 PM: Just heard from a resident near 12th and Elmgrove, where she says casings have been found and police are searching for more evidence. Added the photo she sent (atop this story).

ADDED 10:15 AM MONDAY: Just checked with SPD spokesperson Det. Renee Witt, who says police recovered nine casings in all, in the 7900 block of 12th SW. No injuries or property damage reported. Police were told that a white car, possibly a Gran Prix, was seen with a passenger pointing a “rifle out of the window,” firing shots “into the air,” but police did not find the car or any suspects.

10:37 PM: We’re not sure yet about the reason for the search, but police are looking for a suspect in the Schmitz Park Elementary area, and per scanner communication, the Guardian One law-enforcement helicopter is on the way, so you will likely hear it soon if you’re in that area. We have a crew on the way; more information when we get it. The description mentioned over the air is a white man, early 20s, six feet tall, hoodie and long, dark-colored shorts.

10:47 PM: Police tell our crew in the area that they are looking for a domestic-violence suspect. No other details. They’re bringing in a K-9 to help search on the ground.

10:51 PM: We’ve learned that the original scanner traffic on this incident mentioned possible harassment and vandalism – tire-slashing – as part of why they’re seeking the suspect.

11:14 PM: The search in the original area – centered on a home near 49th/Hinds – did not pan out, but they’re following other leads, including one that the suspect might have headed east, toward California SW. If you see anyone matching the description, call 911.

11:19 PM: Sounds like they may have a suspect in custody. Will verify when we can.

11:27 PM: Precinct verifies the arrest. We’ll seek out additional information tomorrow when the report’s available.

ORIGINAL REPORT, 5:54 PM: A helicopter’s been seen over south West Seattle, and we believe it’s linked to a stabbing reported at 13th/100th in White Center. According to King County Sheriff’s Office via Twitter, the suspect is the victim’s son. Headed that way.

6:24 PM UPDATE: The 69-year-old victim has died, and her 42-year-old son is in custody, KCSO spokesperson Sgt. Cindi West says. We’re continuing to cover this on our partner site White Center Now (where our coverage includes video of Sgt. West explaining what they know so far).

1:20 AM: No info available from an official source at this point but we did hear a snippet of scanner traffic mentioning a burglary, and SPD’s Tweets by Beat – automated bits of information about police calls, delayed about an hour, sent out via Twitter – mentions a 12th/Holden burglary before midnight. (The full list of the latest “Tweets by Beat” for the West Seattle patrol sectors is available at all times, continuously updated, on our Crime Watch page.)

8:40 AM UPDATE: We now know what this was all about – talked with Det. Mark Jamieson in SPD Media Relations. He says a burglary was reported just before midnight in the 7000 block of 12th SW; while that was being investigated, another officer spotted three suspects “pushing a shopping cart full of apparently stolen property” in the 1200 block of SW Holden. When they saw police, they ran off in different directions. A K-9 team and additional officers came in to help search; the K-9 found one of them hiding under a bush at 13th and Webster. That suspect, 16 years old, was arrested and booked into the Youth Services Center. The Guardian One law-enforcement helicopter (which belongs to the King County Sheriff’s Office but is called in by other agencies as needed – SPD does NOT have its own helicopter) came in to help with the search for a while, but the other two suspects weren’t found. What officers DID find: Some stolen property, near where the arrest was made – including three large flatscreen TVs.

We’ve received calls about helicopters over White Center, south of downtown WC. King County Sheriff’s Office deputies are investigating a body that Sgt. Cindi West has tweeted was found in the Mallard Lake area, near the Coronado Springs Apartments at 14th and 107th. We’ve gone to the scene and will have continuing coverage on partner site White Center Now.

5:03 PM: Sgt. Kathleen Larson with KCSO says the robbery happened less than an hour ago at the KeyBank on 17th SW in White Center. They’re looking for a man described as white, in his 20s, 5-5, wearing a beanie, gray sweatshirt, light blue jeans. He was last seen running out of the bank. No injuries reported.