Three days of intense cross-examination of a key Crown witness at a Regina murder trial concluded Tuesday.

Amanda Trevors continues to deny she is trying to frame her former boyfriend Adam Cyr with the murder of her daughter and that that she was selling drugs out of her home in the weeks before the two-year-old toddler’s death.

The 34-year-old Cyr is charged with second-degree murder in the June 2012 death of Natalia Shingoose.

Defence lawyer Bob Hrycan is suggesting Trevors planted evidence, including a pillowcase in a neighbour’s garbage can, to implicate Cyr in the death.

Trevors bluntly told the jury, “I did not frame Mr. Cyr.”

However, Hrycan produced phone records showing a number of text messages between Trevors and Matthew Bennett.

In some of these messages, mention was made of buying Oxycontin.

Trevors vehemently denies she was dealing drugs at the time.

Last week, Hrycan accused of Bennett of being the real killer.

Bennett testified he noticed the front door of the Trevors’ home was wide open at 3 a.m. in the morning on June 21, 2012 – the day Natalia Shingoose was found dead in her bed.

He says he went into the house to alert Amanda Trevors and make sure everyone was all right.

On Tuesday, Hrycan went further suggesting Trevors and Bennett were dealing drugs together and that she was trying to protect him as a suspect in her daughter’s death by framing Cyr.

Trevors repeatedly disagreed with these accusations while on the witness stand.

In the afternoon, the jury was played a frantic 911 call from Trevors on the morning she found her daughter’s lifeless body.

She is the final witness for the prosecution.

Trevors spent a total of four days on the witness stand including three days of intense cross-examination from Hrycan.

An agreed statement of facts will now be entered into evidence and the defence will begin its arguments.

It is not known if any defence witnesses will be called to testify.

The trial is in its third week.