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CENTENNIAL (KUSA) - Below James Holmes' bizarre tangle of red-orange hair, his facial expressions in court Monday rolled from disinterest to disbelief.

Holmes was wide eyed one moment and seemingly exhausted the next.



Many wondered aloud if Holmes was medicated, mentally ill, or purposely putting on a show.



9Wants to Know asked former FBI profiler Clint Van Zandt if the strange behavior Holmes displayed in court provided any clues or indication of what may be going inside the mind of the accused mass murderer.



"I would strongly consider a mental health condition," Zamdt said. "A lot of the behavior that we hear attributed to [Holmes] is consistent with schizophrenia, so that could be part of it. When you have that, it is something that comes on over a period of time."



Van Zandt says attorneys for both sides will have to answer a key question to figure out if Holmes is mentally competent to stand trial.



"That's what they're going to have to look at. Did he know what he was doing was wrong at the time he did it?" Zandt said. "So now the question is, is he crazy like a fox? Or is he just simply crazy."



Holmes was a neuroscience graduate student at the University of Colorado Denver Anschutz Medical Campus. All his tuition was paid and he received a $26,000 annual stipend.



Related Story: CU refuses to discuss shooting suspect



Holmes quit last month without giving a reason, leading many to wonder if faculty members noticed any warning signs.



"We're all always looking out for our students' well being," said Barry Chur, Dean of the CU Denver Graduate School.



CU leaders would not answer specific questions about Holmes, including whether faculty had concerns about mental illness.



"We've been asked specifically by the police to not do that and we're not going to," said Don Elliman, Chancellor of CU Denver.



A search of the labs Holmes worked in at CU Denver has so far turned up no missing dangerous chemicals.



There were two suspicious packages on campus Monday. Both packages turned out to be harmless.



Officials say one package was slipped under the door of a professor, who didn't recognize the sender. The other was in the campus mail system.



They say there is no evidence either was connected to James Holmes.



Lisa Damiani, a San Diego-based attorney for Holmes' family, says they won't be talking about the suspect.



"The family has elected not to discuss James [Holmes] or their relationship with James," Damiani said.



9NEWS legal analyst Scott Robinson says an insanity defense could only be proven if Holmes is truly mentally ill.



"If he's faking it, he's going to be found out," Robinson said. "Depending on the degree of mental illness, if any, it may be difficult to communicate with him in a meaningful fashion."



Arapahoe County District Attorney Carol Chambers says formal charges against Holmes will be filed on Monday.



"In a case like this the investigation doesn't stop. It will continue up until trial," Chambers said.



It could take months for prosecutors to decide if they'll seek the death penalty. They first want to speak with the victims' families.



Jessica Watts' cousin, Jonathan Blunk, is one of the 12 who died. He shielded his girlfriend from gunfire.



"I'm grieving. It hasn't gotten to the point where I know that he won't come through my door," Watts said.



Van Zandt says the loss of those 12 lives, and the injury of 58 others, will be number one as this case moves forward, no matter how Holmes behaves in court.



"The behavior I think all of us are interested in is the four months that he took to put this diabolical plot together," Van Zandt said.



Holmes' apartment in north Aurora is still locked down as a crime scene meaning his neighbors still can't go home.

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