Short answer: he or she has passed away. Cameras only capture what is physically present within its lens, the only thing it can capture is the final moments of the individual prior to death but won’t negate the fact he or she’s dead after the footage was recorded.

This individual may have committed suicide or died in an accident to escape surveillance since a dead person can’t be tracked, but could they just shift their focus on another person who lives in the same property as the deceased target?

Like this: the son is dead but the focus shifts on spying his mother or brother right after his death. Unless they both perished in an unreleated accident or due to unforseen circumstances, target is replaced on finding any living relatives within the family tree.