The former mental patient accused of stalking Uma Thurman appeared at her front door repeatedly at odd hours, and he left her a frightening letter, according to testimony Tuesday by two of the actress' employees.

Thurman's housekeeper Dorota Janas testified on the second day of Jack Jordan's trial that he rang the bell at the actress' Greenwich Village town house at least twice a day for at least 10 days last summer.

Jordan, 37, is on trial in Manhattan's state Supreme Court charged with stalking and aggravated harassment. He was arrested in October 2007 after following and trying to contact Thurman from early 2005 until about a month before his arrest. He faces up to a year in jail if convicted.

His lawyer, George Vomvolakis, says Jordan is a former mental patient who has been diagnosed as schizophrenic and bipolar and should be in psychiatric treatment, not in jail.

Janas, testifying through a Polish interpreter, said she saw Jordan sitting on the front stoop a few days before another employee called police. Some time later, she retrieved a letter Jordan had left for Thurman on the stoop.