Masha "I grew up watching American television" - no, you didn't. Masha is in her late 40s or early 50s, and supposedly grew up in the former Soviet Union, which means she didn't have access to western TV shows until she was a teen or young adult in the early 90s. They weren't broadcast on Soviet television, so you could only watch them via bootlegs, which most people didn't have access to, on a VCR, which most people didn't own.
I found it hard to believe that everyone lied or minimized the events to the police in order to protect Masha. Maybe the Marconis, but not any of the other guests