In a case that could have ended in tragedy if not for a working sprinkler system, 64-year-old Ronnie Bookhardt has been ordered to serve nearly five years in federal prison for setting fire to a Southeast D.C. apartment building where members of his own family lived. On Friday, a judge sentenced Bookhardt to 57 months behind bars, followed by three years of supervised release, for the October 20, 2022 blaze that ripped through part of the four-story building at 601 L Street SE. The fire caused more than $200,000 in damage, but no residents were injured because sprinkler heads activated and kept the flames in check.
Sentence and plea
According to WTOP, Bookhardt pleaded guilty on February 9, 2026, to one count of arson. The plea set the stage for Friday's sentencing, where the court formalized the 57-month prison term and imposed three years of supervised release.
Prosecutors' evidence
A press release from the U.S. Attorney's Office outlines the evidence that helped secure the conviction. Surveillance video captured Bookhardt entering a stairwell in the building shortly before 4:50 a.m. on October 20, 2022, carrying a black plastic bag. Prosecutors said the footage shows him pouring lighter fluid, manipulating a lighter, then leaving the area right after a bright flash.
Investigators later reported smelling an accelerant at the scene. Two sprinkler heads in the hallway activated during the fire, limiting how far the flames spread and keeping the damage largely contained to the building itself.
Arrest and impact
WTOP reports that Bookhardt was arrested two days after the fire, on October 22, 2022, and has been held in custody since then. Officials estimate the blaze inflicted more than $200,000 in damage to the four-story building, and building staff later told investigators that water from the sprinklers actually caused more damage than the fire itself.
Prosecution response and safety takeaways
In announcing the sentence, prosecutors and Interim Metropolitan Police Department Chief Jeffery Carroll praised the work of investigators from MPD, the D.C. Fire Department and the U.S. Attorney's Office, according to the U.S. Attorney's Office. Officials pointed to the case as a stark reminder that functioning sprinkler systems and quick investigative work can make the difference between a costly crime and a deadly one, especially when a fire is set intentionally in tight residential spaces.
