Answered questions from season one

This is a list of answers to questions derived from the first season's story arc. These questions are taken directly from the episode guides.

Independence Day
Answer: It was part of a plan hatched by the Light to break every villain out of Belle Reve Penitentiary, as revealed in "Terrors." Mister Freeze, Icicle Jr., Killer Frost and Captain Cold allowed themselves to be caught and sent to Belle Reve, where they would use their cryogenics expertise to brittle the thick prison walls for the super strong inmates to tear down.
 * Was the "Ice Villains" attack coincidental or orchestrated?

Fireworks
Answer: He was sent to Belle Reve Penitentiary, as seen in "Terrors."
 * Where did the Justice League take Blockbuster?

Welcome to Happy Harbor
Answer: In Young Justice #2, we learn through a genomorph-induced hallucination that the Joker followed Lucas Carr into the Cave. Greg Weisman revealed that that happened four years ago (2007). Answer: In "Drop-Zone," L-6 implied that he was working for the Light.
 * How and when was the location of the Cave compromised?
 * Was T. O. Morrow working alone or was he in cahoots with someone else?

Drop-Zone
Answer: They were sent to Belle Reve Penitentiary, as seen in "Terrors."
 * What happened to Mammoth and Shimmer?

Schooled
Answer: In Young Justice #2, he witnessed a genomorph-induced hallucination retelling the Joker's attack on the Cave, where he unleashed a troop of green-furred monkeys wreaking havoc.
 * Why does Superboy hate monkeys?

Answer: In Young Justice #8 we see the Amazo attack from her perspective.
 * Who fired the arrow that saved the Team?

Infiltrator

 * What is Artemis' story? (Partial Answer #1, Partial Answer #2)
 * Why are Batman and Green Arrow apparently lying about Artemis' kinship to Green Arrow? (Answer)
 * How do Artemis and Cheshire know each other? (Answer)

Downtime

 * Why is Aqualad the only practitioner of Atlantean sorcery with visible tattoos? (Answer)