a clear picture of what happened before and after the slaying of the officer whose weapon, authorities say, was recovered at the scene. a 40 caliber, which was found near his lifeless body. >> i can confirm today it was the officer's weapon that was recovered at the scene. we received confirmation yesterday and we're following up on some forensics from that weapon as we speak. >> reporter: they are also putting boots on the ground, taking k-9 units back to the scene looking for clues, law enforcement presence beefed up ahead of the holiday weekend, which usually brings in tens of thousands of vacationers. >> yes, we know it's a holiday weekend, and yes, we know it's a partially -- a partial resort community, so we have put in place plans in those situations where people suspect somebody may have been in their home squatting, and we've taken it to