Two men were killed when a car was driven into a wall they were sitting on at a Pacoima shopping center. Charlie Holt, 52, of Pacoima, was killed immediately, police said. A 71-year-old man whose identity was withheld died later at a hospital in Mission Hills. The driver was arrested on suspicion of murder. Dunn was held at the scene by bystanders and a security guard who protected the suspect from an angry crowd, police said.