I don't buy it. Brake fluid is extremely toxic. Sure with a pair of tin snips or sheers he could make a crack pipe out of the metal tubing connected to the calipers in about 10m or less but it sounds dirty and inconvenient.
If you know enough to do that, you know it's going to fuck the cars break system up. He wanted his gf dead
If you know enough to do that, you know it's going to fuck the cars break system up. He wanted his gf dead