UPDATE: Evelyn Boswell's mom claims grandmother took toddler, reveals she's pregnant
WCYB / Tennessee Bureau of Investigation / Wilkes County
Left to right: Megan Boswell, Evelyn Boswell, Angela Boswell, William McCloud

via WREG:

SULLIVAN COUNTY, Tenn. (WJHL) -- Less than a week after an Amber Alert was issued for missing 15-month-old Evelyn Boswell, her mother sat down with WJHL-TV.

“I told TBI [Tennessee Bureau of Investigation] where to find her in Mendota. My mom took her to a campground in a silver camper and if they don’t go tonight, I’m going to go find her myself, because I’ve told them and they’re not really like taking it seriously and if they don’t go tonight, I will go myself and go get her ... They’re not taking me seriously, TBI isn’t, because I’ve not fully told them, I’ve been like ‘Hey, like my mom camped out in Mendota, you know, to go check them out,’ but I’ve never been like, ‘Hey,’ specifically, hey, she’s like in a silver camper,’ because my mom did threaten me, like you know, if I told anybody – I’m not gonna get into that – but she did,” Evelyn's mother Megan Boswell said in the interview with WJHL.

Sullivan County authorities said they have already searched that area in Mendota and nothing was located.

Sullivan County Sheriff Jeff Cassidy said Megan Boswell has given them several inaccurate statements since they began investigating this case.

When asked about those conflicting statements, Megan Boswell said she was trying to help her mom.

“I was trying to protect my mom, maybe in hopes, ‘Oh well, she just tell them were Evelyn was,’ but obviously she’s not going to.”

Several hours after the interview, Megan Boswell reportedly sent a private Facebook message to the WJHL claiming that she went in for a polygraph test and authorities turned her away because she is pregnant.

The Sullivan County Sheriff’s Office said they “do not use polygraph.”

The Tennessee Department of Children’s Services says 15-month-old Evelyn Boswell “was last seen by certain family members near the end of November 2019 and the first of December 2019.”

Megan Boswell said her mother picked up Evelyn just before Christmas but then suddenly stopped returning her calls.

Evelyn Boswell was reported missing to the Tennessee Department of Children Services by her grandfather, who said he hadn’t seen her in months, the sheriff added. An Amber Alert was issued this month.

Authorities arrested Angela Boswell and William McCloud in North Carolina on Feb. 21. They were found traveling in a gray 2007 BMW that Tennessee authorities were on the lookout for earlier Friday. The two were charged with possession of stolen property, the Wilkes County Sheriff’s Office in North Carolina said in a news release.