Scores of swimmers waded past a drowning woman as she clung to a pool railing because they had no idea she was in trouble, a psychologist believes. Leticia Gonzales Triplett, 58, died on the morning of February 4 in the North Decatur Las Vegas Athletic Club's swimming pool.

For nearly 20 minutes nearly 20 gym members failed to intervene during a woman’s drowning, but a Las Vegas psychology expert has a few possible answers as to what was unique about this case.

Ask Erin Mantz why she loves personality tests, and she’ll tell you she’s a Pisces, an only child, and an introvert prone to self-reflection. “I’m constantly craving and searching for insights into why I do what I do, and what makes me tick,” she says. Since discovering them at her college career center, she’s taken many different kinds, but the most transformative was the one she took with her coworkers at AOL in her 30s. A new manager instructed Mantz and her colleagues to take the Myers-Briggs Type Indicator test, which revealed she’s an INFJ: intuitive, enthusiastic, impulsive, and prone to improvisation.

As UNLV prepares to bring operations back to a new normal this week, a psychology professor is studying the immediate emotional effects of last month's campus shooting on the community.

As UNLV prepares to bring operations back to a new normal next week, a psychology professor is studying the immediate emotional effects last month’s campus shooting had on the community.

It's not a bluff. Find out here how to (almost definitely) spot a psychopath by looking at their eyes.

After the deadliest mass shooting in American history, Stephen Benning studied the trauma inflicted on Las Vegans. Now, he’s doing the same for the most recent mass shooting – this time on his own campus.

Antisocial, antipathetic, impulsive: there are many signs that allow us to identify a so-called “psychopathic” personality. But if we are to believe some experts, their eyes would be just as telling and would help us flush them out.