Five years after her son was kidnapped when he was a baby, San Diego native Leilani Masumoto has been finally reunited with her son after someone tipped off police.

Masumoto told San Diego police that her son was kidnapped by the boy’s father, Julio Rocha, after she was granted custody of her son when they split. Julio than took their newborn son and moved to Mexico City and left him with no information at the door steps of his parents. According to the Huffington Post, Masumoto explained, “I haven't really celebrated Christmas or his birthday or anything. I was just waiting to get him back home. This will be our first Christmas together."

Police say that they were tipped when a young girl’s project for school delt with missing children. When she uncovered a photo of the missing boy and realized “hey…this is my next door neighbor” .