A key witness in the criminal case against a former Olympian accused of damaging the Lincoln Memorial Reflecting Pool testified that the landmark had sustained significant damage prior to the alleged incident, according to a court filing submitted this week. Hearn’s attorneys argued that the government’s own witness could not establish that Hearn caused any compensable damage, a critical issue because the felony charge requires at least $1,000 in loss. According to the filing, the National Park Service witness told the grand jury that the pool was already leaking more than 1 million gallons of water per week. The allegations come after the Trump administration spent more than $14 million on a renovation of the reflecting pool, including work intended to address its longstanding leaks. At least five people have been arrested and five others have been cited for vandalism related to the reflecting pool.