▁into ▁his ▁san ity ▁diagn osed ▁him ▁at ▁least ▁three ▁times ▁— ▁in ▁April ▁ 1 9 6 4 , ▁August ▁ 1 9 6 9 , ▁and ▁November ▁ 1 9 6 9 . ▁When ▁arrested , ▁Gr ig oren ko ▁was ▁sent ▁to ▁Moscow ' s ▁L uby anka ▁prison , ▁and ▁from ▁there ▁for ▁psych iat ric ▁exam ination ▁to ▁the ▁Ser b sky ▁Institute ▁where ▁the ▁first ▁commission , ▁which ▁included ▁S nez h ne v sky ▁and ▁L un ts , ▁diagn osed ▁him ▁as ▁suffering ▁from ▁the ▁mental ▁disease ▁in ▁the ▁form ▁of ▁a ▁par ano id ▁del us ional ▁development ▁of ▁his ▁person ality , ▁accompanied ▁by ▁early ▁signs ▁of ▁c ere br al ▁ar ter ios cl eros is . ▁L un ts , ▁reporting ▁later ▁on ▁this ▁diagn osis , ▁mentioned ▁that ▁the ▁sympt oms ▁of ▁par ano id ▁development ▁were ▁" an ▁over est imation ▁of ▁his ▁own ▁person ality ▁reaching ▁mess ian ic ▁proport ions " ▁and ▁" re form ist ▁ideas ." ▁Gr ig oren ko ▁was ▁not ▁responsible ▁for ▁his ▁actions ▁and ▁was ▁thereby ▁for ci b ly ▁committed ▁to ▁a ▁special ▁psych iat ric ▁hospital . ▁While ▁there , ▁the ▁government ▁dep riv ed ▁him ▁of ▁his ▁p ension ▁despite ▁the ▁fact ▁that , ▁by ▁law , ▁a ▁ment ally ▁sick ▁military ▁officer ▁was ▁entitled ▁to ▁a ▁p ension . ▁After ▁six ▁months , ▁Gr ig oren ko ▁was ▁found ▁to ▁be ▁in ▁rem ission ▁and ▁was ▁released ▁for