A man was arrested Monday on suspicion of arson after an overnight fire in an Aurora apartment complex killed a dog and left two people without a home. Paul Daniel Clark was arrested on investigation of first-degree arson, fourth-degree arson for endangering life and fourth-degree arson of a residence causing $100,000 to $1 million in damages in connection to the Monday morning fire, Aurora Fire Rescue officials said. The fire happened around 12:30 a.m.