Deputy Chief Medical Examiner Dr. Jennie Duval listed his cause of death as "complications of near-drowning."
When interviewed by police, Botelho said she left Wesley and his brother, Trenton, in the tub and then went to the porch "for a very brief time period," court records say. She sent an instant message to a friend on her computer and returned to the bathroom, she told police.
But an analysis by the U.S. Secret Service found her computer was in constant use from 4:20 to 5:02 p.m.
, police said
When she returned to the bathroom, the 2-year-old said his brother was sleeping and swimming in the tub, police said. And Botelho told police she found Wesley in the tub with water running.
Her call to 911 was logged at 5:04 p.m.
Botelho tried to perform cardio-pulmonary resuscitation on the infant and had a neighbor drive them to Elliot Hospital.
Ola Mayberry, a downstairs neighbor, went into Botelho's apartment to find the other boy.
"There she found Trenton still in the tub," the police affidavit said. "She described the tub as being half-full and draining."
Botelho's mother, Diane Sutherby, told police she felt that Botelho's computer "distracted from her parenting duties."
A brother, Joseph Silver, said Botelho told him the children were fine by themselves in the tub, police said.
Two other brothers, Nicholas Botelho and Christopher Botelho, both told detectives that their sister would put the children into the tub several times a day "as a way to pacify them."
Nicholas told police he had warned his sister not to leave the kids alone in the tub. Christopher said his sister told him she "going crazy because of the kids," and that she was "gonna kill the kids."