The man who asks about his brother in the police department is Liam Pace, Charlie's brother.
When Sawyer wakes up late, it's 8:42. 4, 8, and 42 are three of the show's mysterious Numbers.
15:00 min in - The book on the top of the stack of books on Sawyer's dresser is "Watership Down". He is seen reading this same book in House of the Rising Sun (2004)" and Left Behind (2007). Sawyer found the book going through luggage after the original plane crash. It originally belonged to Boone.