Definition: In this task, a passage will be given and the goal is to identify an event from the passage. An event is defined as a single word representing something that happened, is happening, or may happen. An event can be factual or hypothetical, positive or negative, certain or uncertain. While most events are based on verbs, an event can also be based on a noun (ex. storm, snow, rainfall) or a copula verb (is, was, been, etc.). The event must not be a pronoun or an adjective. For noun events with multiple words, use the last word in the phrase as event.
Input: Passage: In addition, a Customs Service videotape from a border crossing point shows the woman's car returning from Mexico, these officials said. Authorities obtained a material-witness arrest warrant for Kopp after they said Kopp's car was spotted in Amherst in the weeks before Slepian was killed.

spotted