Police make arrest in connection with Christmas-season murders that rocked San Diego, Riverside counties

San Diego police remained tight-lipped today about motives or other details surrounding the arrest of a suspect in three Christmas-season murders that rocked San Diego and Riverside County, where one of the bodies was found.

Chief of Police Shelly Zimmerman will hold a news conference at 11:30 a.m. Monday to discuss the arrest of Carlo Gallopa Mercado, 29. He was taken into custody at about 10:30 p.m. Friday in the 8700 block of Westmore Road, a suburban street on Mira Mesa, on San Diego's north side..

Mercado was booked at 7:24 a.m. Saturday for three counts of first degree murder for the Chr...