The mother of a missing New York man who was found in D.C. after being photographed by the Associated Press say she’s not sure why he left home.

In an interview with the AP, Nicholas Simmons’ mother Michelle declined to talk about his mental health, but did say he would get any help that he needs. The 20-year-old community college student left home after a discussion about his future.

Simmons was photographed by Jacquelyn Martin, who was looking to take photos to represent the cold weather, and originally identified as a homeless person named “Nick.” On her blog, Martin said “The odds of this chance encounter resulting in a reunion are mind boggling.”

Thanks to all the people who have reached out about this story, to all the families whose love and perseverance overcomes the odds, and to the outreach workers who help the homeless every single day. My best to Nick and the Simmons family. Please remember those who are still on the streets who need our help.

After being identified through the photo by his family, Simmons was picked up by D.C. police and taken to a local hospital. He was reunited with his family that night.