纵火犯人

例句：

1. 1. The suspect is an arsonist who has been at large for weeks.
   嫌疑人是一名纵火犯，已经逍遥法外数周了。
2. 2. The fire was started by an arsonist who set the building ablaze.
   这场火灾是由一名纵火犯点燃的，导致建筑物被烧毁。
3. 3. Arsonists are often caught red-handed when caught trying to start fires.
   当纵火犯试图点火时，他们通常会被抓个正着。