It's been more than a year since 6-year-old Max Shacknai died at his father's mansion in Coronado, California.
Days later, his father's girlfriend was also found dead from an apparent suicide.
Coronado police ruled the little boy's death an accident, but his mother Dina is convinced there's more to the story.
Monday night, she is headed to California to speak to the city council and urge them to reopen the case.
Dina Shacknai told FOX 10 she will not take no for an answer, and is hoping the Coronado City Council will use their influence to get the case reopened.
She hired two independent investigators to look into Max's death, and they both ruled that his death was likely the result of an assault. But local police ruled it an accident, and said last week, despite the extra analysis, they would not reopen the case.
"I plan to present to them my findings, personally, as well as the documentation and data they may not have. I'm not going to stop, and I'm going to leave no stone unturned -- not only to find out what happened to Max, but also why would we dismiss in such a way?" said Dina Shacknai.
In addition to the council meeting, Dina plans to meet with other city and county officials. The meeting is Tuesday afternoon.
"I believe that in 3 minutes if they can listen to what I can tell them and really listen to the facts they can help encourage the chief and others that are in power to reopen the case."