Bernstein’s dad, Gideon Bernstein, said his family uncovered a contact named “Sam Woodward” in his son’s Snapchat account. They called Woodward for information as part of their personal investigation.

Beaue Bernstein, Blaze Bernstein’s sister, spoke in an exclusive interview with ‘20/20’ about how her family was able to make a phone call to the man police later suspected of killing the 19-year-old.

Snapchat Plus subscribers are given a 5-minute window to rephrase messages or make changes to their chats.

Dozens of parents allege in the lawsuit that Snapchat enables drug dealers in reaching minors and young adults.

The social media company said it has been taking the concerns from parents and lawmakers very seriously and working to flag posts that promote fentanyl and other drugs from being sold.

Amy Neville's son was 14-years-old when he died after taking a fentanyl-laced pill.

Alexander Neville and Sammy Chapman were teens when they overdosed on fentanyl-laced pills allegedly purchased on Snapchat.

Nordstrom and Snapchat have teamed up to help make beauty shopping easier.

Although the tech company said it's actively cracking down on alleged accounts of drug dealers, Snapchat is at the center of lawsuits from grieving parents who are fighting back.

Families are suing the company behind Snapchat, alleging the social media giant enables drug dealers to sell lethal drugs to children online.

Families of more than 50 overdose victims accuse the social media platform of enabling drug dealers to sell fake prescription pills laced with fentanyl to minors and young adults.

The app’s feature can now identify real-world objects, such as clothes and dog breeds.

Khaseen Morris was a senior at Oceanside High School and a vigil was held for him in the parking lot where he was attacked last week.

The murders of Abby Williams, 13, and Libby German, 14, on Feb. 13, 2017 remain unsolved.

Plus, Google introduces a new way to protect your password and Samsung has a new dating app.

A Detroit officer is under investigation after posting a racist and demeaning Snapchat video.

Last year, Snap shareholders sued the company over IPO disclosures.

Adrienne Bankert reports the buzziest stories of the day in "GMA" Pop News.

Kylie Jenner took to social media expressing her confusion and disinterest in the app after it launched a redesign, causing the stock to plummet more than $1 billion in value.

The reality star took issue with the app's redesign.

Over a million Snapchat users signed a petition opposing the latest changes.

Experts say Snapstreaks may get teens hooked on Snapchat and can create a concerning hierarchy of friendships.

What parents should know about the location sharing feature of the popular app.

ABC News' Jesse Palmer brings the latest on what parents should know to protect their children's privacy in the Snapchat app.

Shares of the social media company are opening up with a less than expected valuation.

Co-founders and Stanford University graduates Evan Spiegel and Bobby Murphy are now worth an estimated $5.5 billion each, after their IPO for Snap Inc. started trading at the NYSE on Thursday.

Despite a $25 billion dollar evaluation, messaging app reveals it has never made a profit.

ABC News' Olivia Smith talks with some of the first customers to experience Snapchat's wearable camera lenses.