( CNN ) -- New court documents released Friday in the Colorado movie theater shooting reveal that suspect James Holmes `` had conversations with a classmate about wanting to kill people '' months before the July 20 massacre . The new details about evidence gathered in the case against Holmes were made public in a court document filed by prosecutors over a defense move to keep some of the suspect 's educational records from the University of Colorado private . `` The defendant had conversations with a classmate about wanting to kill people in March 2012 , and that he would do so when his life was over , '' the document says . No other details are provided about those conversations . Holmes , 24 , is accused of opening fire at an Aurora theater last month during a midnight premiere of the latest Batman movie , `` The Dark Knight Rises , '' leaving 12 dead and injuring 58 others . He has been charged with murder and attempted murder and faces two weapons charges . The new document also reveals more details about the timeline of events leading up to the theater shooting , beginning with Holmes failing his graduate school oral boards a month before the shooting . Holmes was a Ph.D. candidate studying neuroscience at the University of Colorado 's Anschutz campus in Aurora . Soon after , he was `` denied access to the school after June 12 , 2012 , after he made threats to a professor . '' Prosecutors said Thursday that the threats were reported to campus police . Subsequently , Holmes `` started the process to voluntarily withdraw from his graduate studies program . '' `` After he was denied access to the CU-Denver Anschutz campus , he began a detailed and complex plan to obtain firearms , ammunition , a tear-gas grenade , body armor , a gas-mask and a ballistic helmet , which were used in the commission of the murders and the attempted murders , '' the document says . A shackled Holmes , his hair still dyed red , appeared at a Thursday court hearing in the ongoing fight between defense attorneys and prosecutors over access to his educational records . The main issue is whether the prosecution should receive non-medical documents from the university . These would include admissions forms , grades and transcripts . Prosecutors argue that Holmes ' records `` are relevant to the investigation . '' The judge did not issue an immediate ruling . The University of Colorado said this month that it hired a former U.S. attorney to conduct an independent review into how the school handled Holmes . A court document revealed that Holmes was a patient of CU psychiatrist Lynne Fenton before the killings . She was so concerned about his behavior that she mentioned it to her colleagues , saying he could be a danger to others , CNN affiliate KMGH reported this month , citing sources with knowledge of the investigation . Fenton 's concerns surfaced in early June , sources told the Denver station . They told KMGH that Fenton contacted several members of a `` behavioral evaluation and threat assessment '' team to say Holmes could be a danger to others , the station reported . The `` BETA '' team consists of key staff members from various university departments who have specific expertise in dealing with assessing potential threats on campus , the school says on its website . `` Fenton made initial phone calls about engaging the BETA team '' in `` the first 10 days '' of June , but it `` never came together '' because in the period Fenton was having conversations with team members , Holmes began the process of dropping out of school , a source told KMGH .
New court documents reveal conversations about wanting to kill . Holmes is accused of killing 12 and injuring 58 others . Prosecutors say Holmes also made threats to a professor .