▁de pressed ▁and ▁had ▁been ▁out ▁of ▁contact ▁with ▁family ▁for ▁months . ▁ ▁The ▁official ▁investigation ▁established ▁that ▁the ▁attack ▁was ▁pre med itated ▁but ▁not ▁well ▁prepared . ▁ ▁The ▁report ▁said ▁the ▁people ▁killed ▁were ▁innoc ent ▁by stand ers ▁who ▁were ▁watching ▁the ▁para de . ▁T ates ▁did ▁not ▁intend ▁to ▁kill ▁many ▁people ; ▁he ▁had ▁sc out ed ▁the ▁area ▁before hand ▁but ▁when ▁he ▁returned ▁for ▁his ▁assault , ▁the ▁situation ▁had ▁changed ▁and ▁people ▁were ▁standing ▁in ▁a ▁previously ▁cord oned - off ▁street . ▁ ▁The ▁public ▁pro sec utor ▁assumed ▁T ates ▁acted ▁alone ▁and ▁concluded ▁that ▁his ▁actions ▁would ▁never ▁be ▁totally ▁explained . ▁ ▁After math ▁A ▁few ▁hours ▁after ▁the ▁attack , ▁Queen ▁Beat rix ▁addressed ▁the ▁nation ▁in ▁an ▁emot ional ▁video ▁message . ▁ ▁At ▁a ▁press ▁conference ▁that ▁afternoon , ▁police ▁reported ▁that ▁T ates , ▁who ▁was ▁still ▁conscious ▁but ▁sever ely ▁injured ▁after ▁the ▁accident , ▁had ▁told ▁police ▁that ▁it ▁was ▁a ▁deliber ate ▁act ▁aim ed ▁at ▁the ▁royal ▁family . ▁He ▁had ▁no ▁prior ▁history ▁of ▁psych ological ▁problems , ▁and ▁there ▁are ▁no ▁indic ations ▁that ▁any ▁sort ▁of ▁terror ist ▁group ▁was ▁involved . ▁Initial ▁rum ours ▁that ▁the ▁car ▁was ▁rig ged ▁with ▁explos ives ▁were ▁later ▁denied ▁by ▁the ▁police . ▁ ▁Can cel led ▁events ▁ ▁Following ▁the ▁attack , ▁at ▁ 1 2 : 1 5   pm ▁local ▁time , ▁it ▁was ▁announced ▁that