Katrina Goss says March 14, 2017, was a “regular day,” in her son, Tysen’s, life. She says the 11-year-old went to school, then to tutoring and followed his normal routine. Then, a little after 10 p.m. says Goss, she went to tuck Tysen into bed and found his bedroom door locked.

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“That wasn’t really unusual. So I, I unlock his door and then I looked around and I was calling for him and I thought he was just — I thought he was just like just being silly and hiding on me and I was calling for him. And then I, I looked in his closet and I found him.” 

Authorities in Michigan later reported Tysen was the victim of an apparent internet prank gone wrong. A 13-year old female friend had allegedly threatened to kill herself; then reportedly used someone else’s social media account to “confirm” her death. Katrina claims Tysen reacted by attempting to take his own life. He died April 4, following 21 days on life support.

In a Dr. Phil exclusive airing Monday, Katrina shares details of the night she found her child near death.

Why does she say she believes Tysen hid the fact that he had a “girlfriend” from her?