A Florida woman has been accused of murdering her boyfriend’s 9-year-old daughter — after her home security cameras caught her beating the girl and getting her 103-pound Rottweiler to maul her, according to authorities.

Tyshael Elise Martin, 34, claimed to have discovered little Jamaria Session unresponsive when she went to wake her up for a family vacation to California on June 17, WESH 2 reported.

But investigators sought out footage from their Montverde home’s security system because the little girl was covered in cuts, bruises, burns and even bite marks, the outlet said.