▁Lane ▁published ▁an ▁investigation ▁in ▁June ▁ 2 0 1 3 ▁document ing ▁that ▁the ▁anonymous ▁bu yer ▁was ▁billion aire ▁financi er ▁Leon ▁Black . ▁ ▁Lane ▁was ▁the ▁first ▁international ▁journalist ▁granted ▁an ▁interview ▁with ▁Lou vre ▁director ▁Jean - L uc ▁Mart ine z ▁in ▁October ▁ 2 0 1 3 . ▁ ▁In ▁ 2 0 1 4 , ▁she ▁became ▁the ▁first ▁journalist ▁in ▁nearly ▁a ▁de cade ▁to ▁conduct ▁an ▁interview ▁with ▁German ▁artist ▁Ger hard ▁Rich ter . ▁ ▁G url itt ▁case ▁ ▁Between ▁November ▁ 2 0 1 3 ▁and ▁late ▁ 2 0 1 5 , ▁Lane ▁published ▁a ▁series ▁of ▁sc o ops ▁on ▁the ▁front ▁page ▁and ▁numerous ▁articles ▁inside ▁of ▁the ▁Wall ▁Street ▁Journal ▁about ▁the ▁art ▁tro ve ▁of ▁H ilde brand ▁G url itt , ▁one ▁of ▁Hitler ' s ▁primary ▁art ▁deal ers . ▁ ▁In ▁February ▁ 2 0 1 2 , ▁the ▁German ▁government ▁in ▁Bav aria ▁had ▁conf isc ated ▁the ▁works ▁from ▁G url itt ' s ▁son , ▁Corn el ius ▁G url itt , ▁but ▁had ▁kept ▁the ▁find ▁a ▁secret , ▁in ▁viol ation ▁of ▁the ▁Washington ▁Princi ples , ▁a ▁set ▁of ▁international ▁gu idel ines ▁on ▁lo oted ▁art ▁that ▁Germany ▁had ▁signed ▁in ▁ 1 9 9 8 . ▁The ▁collection ▁of ▁over ▁ 1 , 2 0 0 ▁paint ings , ▁sculpt ures ▁and ▁works ▁on ▁paper ▁included ▁pieces ▁by ▁Ed gar ▁D eg as ,