Med Student Claims "Craigslist Killer" Suspect Overpowered Her

A medical school colleague describes suspected Craigslist killer Phillip Markoff as brilliant, but says she saw hints to his alleged dark side in exchanges with the accused murderer.

Morgan Houston, appearing on The Early Show on Friday, says that Markoff -- whom she remembered from study sessions as a well-read scholar -- had asked her to accompany him and other medical students on group social outings.

She says that, during one of  their nights out,  Markoff slammed her up a wall and unsuccessfully attempted to kiss her.

"He was overpowering me," Houston said, "and I couldn't pull him off me."

She said a friend came to her aid to stop the incident, which she chalked up to the alcohol Markoff had consumer earlier in the evening.

She said that when she heard the news of his alleged killing of a New York masseur, she had flashbacks to her incident.