stalked
v.followed someone secretly and quietly, often in a way that is scary or illegal. It can also mean walking in a stiff, angry way.
v.pursued or approached a person or animal stealthily; alternatively, walked with measured, stiff, or haughty strides. Past tense of 'stalk'.
“The cat stalked the bird through the tall grass.”
“He felt increasingly unsafe after realizing he had been stalked by a stranger for several blocks.”
“The predator stalked its prey with such calculated silence that the deer remained entirely unaware of the impending danger until the final moment.”
The verb is transitive when referring to pursuing someone, but often intransitive when describing a manner of walking.
“The national guard rolled through the streets in tanks; rats brazenly stalked the pavements and Red Cross workers posed for photographs with locals.”