NFL security chief Jeff Miller is confident that Candlestick Park will be a safe venue for fans this season. Miller spent Saturday afternoon meeting with police officers, 49ers security officials and fans a week after two men were shot in a parking lot outside the stadium following San Francisco's 17-3 win over Oakland. He called the violence "unsettling," and something the NFL is taking seriously and plans to "change." "Preseason games across the league generally don't have the same fan base that attends the games throughout the season," Miller said. "I really think a lot of the people who were here last weekend were not the true 49ers fans, they weren't the true Raiders fans. They were people who chose that evening event as their own crime scene, this location as their crime scene. They came here with the intent of maybe drinking a lot and getting involved in things they shouldn't have."