Other mistake: Even though Mason Storm is avenging his family's slaying by corrupt cops and a politician, he has committed several crimes while doing so - he snaps the neck of a person when he has them incapacitated after a fight, then he commits 2 car jackings, then he holds someone at gunpoint, innocent or not he would have been arrested along with the conspirators for the murder and carjacking.
Hard to Kill (1990)
1 other mistake - chronological order
Directed by: Bruce Malmuth
Starring: Steven Seagal, William Sadler, Kelly LeBrock, Frederick Coffin
Plot hole: Detective Mason Storm has been in a coma for a number of years, so how is it that on the day he awakens from the coma, he not only has the strength to move his bed down corridors, but also knows the layout of the hospital?
Mason Storm: So, how come you're not watching the Oscars tonight?
Counterman: The Oscars?
Mason Storm: Yeah, the Oscars.
Counterman: I hate the Oscars.
Mason Storm: You're not having a good time, huh?
Counterman: I mean, who needs the goddamn movies anyway? I got a show in here every single night.
Mason Storm: Yeah?
Counterman: You've got horror, sex, freaks, violence. I don't got to pay no four bucks either.
Question: Why did Jack and Max try to kill Mason's son Sonny? They have their masks on and there's no way that Sonny would have identified them.
Answer: The cover story was that it was a drug deal gone wrong, which led to the murders. The child witnessed them planting evidence and would be able to blow the cover story.
Answer: He survived the first attempt of his family's murder. There's no telling what he saw or heard. As for the masks, the bad guys were taking no chances, security cameras, cell phones and the unexpected eyewitness.
Cell phones? I don't recall seeing a cell phone in the entire movie. It was all landline phones. Cell phones didn't really start to get used until around the mid-90s (a few years later).