Simplify the following text for a Grade 10 native English-speaking person.
Original: In June 2001 , a Komodo dragon seriously injured Phil Bronsteinâ '' executive editor of the San Francisco Chronicleâ '' when he entered its enclosure at the Los Angeles Zoo after being invited in by its keeper .
Simplified: In June 2001 , a Komodo dragon seriously hurt Phil Bronsteinâ '' executive editor of the San Francisco Chronicle . Bronstein had entered the dragon 's cage at the Los Angeles Zoo after being invited in by its keeper .