Quote suegerry: When Adrian first was told Collen was missing he seemed quite indifferent to the fact. When the DA and another officer visited him at his home he very sarcastically told them he had no knowledge of her missing and to leave he had work to do. Even when he was asked if he had seen Collen by JT and Lilly at the coffee shop he just look at them with a "who cares" look. He said he had not seen her since she had left his home the night before.
It took for JT to break into his apt. for him to react to any interests.
JT was the one who (unlike we saw in the spoilers) saved Colleen and Kevin's lives.
Alone the prof would not have had the knowledge of what to do.
To beleive This post has been edited for a spoiler.
JT has every right to be at Colleen's bedside and he is very sincere about his feelings for her.
Adrian didn't know the danger Coleen was in because of the stolen art. JT did becuase he was kidnapped once before, and is involved. I'm sure had Adrian known the whole story he would of been more responsive.