NEW YORK ( CNN ) -- A 15-year-old boy remained in a psychiatric facility Tuesday after Monroe , New York , police arrested him in connection with a plot to attack his former high school on the anniversary of the 1999 Columbine High School shooting , police said . Police say the boy targeted Monroe-Woodbury High School , although he was no longer a student there . He was charged as a juvenile and faces two felony counts of criminal possession of a weapon , Monroe Police Chief Dominic Giudice said . Police withheld the name of the teen , who was arrested Monday after police executed a search warrant at his residence . There they found four bottles filled with gasoline , a torch , machete , black trench coat , three propane tanks , two computers , items that could be used as fuses and several other electronic devices , according to a Monroe Police Department press release issued Tuesday . The supplies were found in the garage , Giudice said , but the teen 's parents had been unaware of their son 's intentions until he told police what he had planned to do . Police also discovered the teen had actively been seeking a military assault-type weapon that could `` hold as many rounds as possible . '' The boy told police investigators he had been bullied by fellow students and had been told that he resembled Columbine shooter Eric Harris , the press release said . A detective on the case told Giudice that the teen appeared to be composed during the interview , as if he were just having another conversation . Police said the plot was planned for April 20 at Monroe-Woodbury High School , which is the anniversary of the Columbine shooting in Colorado , in which 12 students and a teacher were killed . The date also is Adolf Hitler 's birthday . `` He said that he had a lot of hatred toward a lot of the kids who attend that school , '' the press release said . The boy had attended the Monroe-Woodbury Central School District but recently began attending another school , police said . In a statement released by the Monroe-Woodbury Central School District today , superintendent Joseph DiLorenzo indicated that students had come forward with information that may have averted the alleged plot . `` We are working closely with law enforcement to do everything possible to keep our children safe , '' he said .
Monroe , New York , police say boy , 15 , had bomb materials . Police : `` He had a lot of hatred toward a lot of the kids '' at his former school . Police say boy had bottles of gasoline , a torch , black trench coat , other items . Teen had been told he resembled Columbine shooter , police say .