NEW details have emerged about JAMES HOLMES, the alleged lone wolf gunman who’s “The Dark Knight Rises” Colorado slay spree has horrified the nation.

James Eagan Holmes, the loner and a medical school dropout, is the suspect that Colorado police have in custody, Here’s seven grim things about the alleged psycho.  

1. Described as 6'3", the 24-year-old with dark hair and a seemingly friendly smile was born on December 13, 1987.

2. Since being admitted in June 2011, James Holmes was a student at the University of Colorado School of Medicine in Denver until last month, working towards a PhD in neuroscience, but why the highly intelligent young man dropped out of school is not known. According to a Twitter post from a fellow student, he recently presented on 'Psychiatric & Neurological Disorders' for his neuroscience PhD program

3. Before moving to Denver, Holmes spent his younger years in the San Diego area where he attended Westview high school in Rancho Penasquito, California, and graduated in 2006.

4. Holmes' Aurora, Colorado, apartment – which is approximately five miles away from the Century 16 theater – was apparently booby trapped with extremely sophisticated explosives when police investigated it, with what looked like "buckets of extra ammunition" and some kind of chemical inside his home, according to CBSNews.com.

5. Wearing a bullet-proof vest and riot-type mask, the heavily-armed killer arrived at the theatre with two pistols, a shotgun and what is believed to be an assault rifle. Authorities also recovered a ballistic helmet and a gas mask. Despite his numerous weapons, Holmes did not resist arrest or put up a fight when apprehended by police.

6. Holmes' mother, Arlene Holmes did not seem surprised when told her son was involved, telling police: "You have the right person," when they arrived at her Rancho Penasquito home, which suggests he displayed disturbing behavior to his family in the past. However, authorities have found no significant criminal record and no terrorist affiliations.

7. The shooting suspect described himself as “quiet and easy-going” on a rental application, but his neighbors thought of him as a reclusive loner who ignored all the other residents, none of whom knew him well, according to reports. Before setting out to commit the horrific massacre, Holmes left an unnamed song blasting out of his stereo, while a poster of Will Ferrell from the movie Anchorman hung in the kitchen.

8 Holmes was sporting red hair and told people he was "The Joker" when he was apprehended by police.  During a news conference, NYPD commisoner Ray Kelly said, "We have some information, most of it is public. It clearly looks like a deranged individual. He had his hair painted red, he said he was ‘The Joker,’ obviously the enemy of Batman." Batman’s enemy The Joker actually has GREEN hair.

Holmes is tentatively scheduled to appear in a Colorado courtroom on Monday, although no formal charges have been filed yet, according to the Colorado Office of the State Court Administrator. He is resfusing to cooperate with Homeland Security and police and has asked for a lawyer.