PASADENA — Police received complaints Saturday evening from residents that some of the 100 or so people congregating near the scene of Thursday’s officer-involved shooting were tresspassing on private property in the surrounding neighborhoods, Pasadena police Lt. Tracey Ibarra said.

Police units and a helicopter showed a presence in the area, and that was all that was needed, the lieutenant said. The people moved themselves from other people’s yards and driveways once police began cruising through the area.