Elizabeth Vargas Returns From Rehab

Elizabeth Vargas Is Back From Rehab
20/20 - Elizabeth Vargas, who has followed this story from the beginning, will report from Perugia, Italy, for 20/20 on the verdict in the appeal trial of Amanda Knox, the now 24-year-old American convicted in 2009 with two others of murdering her roommate, airing FRIDAY, SEPT. 30 (10-11 pm, ET) on the ABC Television Network. (Photo by Phoebe Natanson/ABC via Getty Images)
20/20 - Elizabeth Vargas, who has followed this story from the beginning, will report from Perugia, Italy, for 20/20 on the verdict in the appeal trial of Amanda Knox, the now 24-year-old American convicted in 2009 with two others of murdering her roommate, airing FRIDAY, SEPT. 30 (10-11 pm, ET) on the ABC Television Network. (Photo by Phoebe Natanson/ABC via Getty Images)

ABC's Elizabeth Vargas announced on Tuesday that she has completed her treatment for alcohol abuse.

The ABC News "20/20" co-anchor checked herself into rehab early in November, stating that she "was becoming increasingly dependent on alcohol."

An ABC News spokesman said at the time that the network was extremely supportive of Vargas and would welcome her back to "20/20" upon her return.

On Tuesday, she tweeted that she had come home:

Vargas did not say when she would be back on the air.

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