Sean Knight had done this kind of thing before. He approached the guard and saw that he was completely off-guard. He originally planned to use a curved knife to stab the guard's neck, but decided against it.
In the end, Sean used a silenced pistol, aimed at the man's head, and fired.
The man collapsed without making a sound.
The faint gunshot was drowned out by the sound of the waves coming from the seaside, and it did not alert anyone else.
Sean searched the guard's body but did not find any keys. He then proceeded to the single-story house.
Sean remembered clearly that Douglas Cooper and Lincoln Harrington were locked in the second room in the last row of single-story houses.
By the time he arrived, Elijah Hastings had already arrived as well. Apparently, the guards over there had been dealt with too.