I have $100,000 cash right now for anybody who can tell me who just tied up my niece and killed her mother at Kaki Beach on the North River Oahu. I'm Scott Weinberger,

investigative journalist and former deputy sheriff.

I'm Anasiga Nikolazi,

former New York City homicide prosecutor

and host of investigation discoveries true conviction.

And this is Anatomy of Murph.

It's no secret that social media has transformed our lives, from how we stay in touch with friends, to how we get our news, our daily distractions, and maybe

even our next job. And of course, social media has also had an enormous impact within

criminal investigations. We've showcased plenty of cases in which investigators have used a victim

or suspect social media footprint to establish a person's timeline, background,

or circle of friends or accomplices.

In a criminal investigation, checking Facebook has become standard practice, a kind of digital neighborhood canvas.

In other words, it can be an invaluable tool, saving time, people power, and in some cases, even saving lives.

Today's story is an extraordinary example of how the interconnectedness of a community and the speed in which information can be shared can radically impact a murder investigation.

But as we will discuss, it also raises important questions

about the risks and the evolving relationship between law enforcement and social media.

For example, how do you leverage the public's help without inflaming too much fear or anger?

How do you guard against misinformation and even vigilanteism? And are

those risks worth taking if it means getting a killer off the streets?

In 2017, Telma Boyneville was a 51-year-old school teacher, living a vibrant life with her

partner Kevin and their eight-year-old daughter on the North Shore of

Oahu, Hawaii's third largest island.

...