Oh, this is going to be a movie

• Girl decides to kill father
• Girl realizes this will need money
• Girl, Boyfriend, et al., devise robbery scheme
• Scheme involves front man wearing bomb as if he were forced to rob
• Bomb explodes when man is confronted, killing him
• Girl kills boyfriend to cover up plot

So, I guess the moral is two-fold

1. Don't date girls who plot to kill their fathers
2. Use a fake bomb if you don't actually want it to explode -- safety over verisimilitude!