then on tuesday, authorities believe powell followed 42-year-old father of two nicholas sambolin to hisome to a charging station, robbing him, shooting him, and then fleeing the scene in a gray 2024 bmw captured on a security camera. his wife discovering his body in the couple's garage. >> mr. powell was held for the senseless killing of nicholas sambolin, a husband and father of two young children at his home in san dimas this past tuesday. >> reporter: the final killing happening last wednesday, powell apparently shooting a 52-year-old man, his name apparently with meld until police notify his relatives. early morning on thursday, november 30th, powell's license plate was identified by an automated license plate reader as he was driving through beverly hills. police connecting his car to the murder in san dimas. >> it pinged off one of our license plate readers. between our dispatcher, our virtual parole officers, which were able to vector officers in and stop the individual safely and take him in to custody. >> reporter: the chief saying it wasn't about a easy arrest. so initially wh