9/30 8:09 AM PT -- 9/30 -- Cops have arrested a man in connection with the incident, and according to the police report ... he's facing misdemeanor charges of simple battery and simple assault.
The man, 48-year-old Angelo Zappacosta, is accused of shoving the other man in the video in the chest and taking a swing at him ... though it didn't connect. According to the alleged victim ... Zappacosta was upset over him reportedly being on his property days earlier handing out wanted posters for Laundrie.
Tensions are boiling over on Brian Laundrie's block, a fight just broke out right in front of his Florida home involving one of the family's neighbors.
Ya gotta see the video ... the neighbor, in a red shirt, starts screaming at a couple of protestors who have set up camp outside the Laundrie family home ... accusing the couple of stepping on his property.
The man sounds like he's had enough of the protestors on his street, threatening to open a can of whoop-ass if the protestors step foot on his property ... something he's already accused them of doing before.
The showdown is super intense ... and it gives a sense of the tensions building on Brian's block.
As you know ... there's a manhunt for Brian, and the FBI has already searched the house.
The altercation outside Brian's home comes on the heels of a makeshift floral Gabby Petito memorial on the front lawn getting tossed in the garbage.
Bottom line ... Brian's neighborhood is on edge.
Originally Published 9/29 5:10 PM PT