Samantha Bevans, accused of suffocating her stepmom in 2022, took the stand Thursday in her defense and denied taking part in the killing of Jodie Bevans, 58, of Palo. She blamed the slaying on her boyfriend, who was convicted of first-degree murder last year. But a rebuttal witness said Bevans demonstrated how she put the pillow over her stepmother’s face and used her foot to apply pressure.