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When the police finally did interview Cara they explained to her that the break lines on Robert’s car had been “clipped” not cut. This allowed for the fluid to leak over time, eventually causing the breaks to fail. This of course happened at the least opportune time for Robert. The line seemed to be damaged by a blunt instrument, rather than a knife or clippers. They guessed a metal file had been used to emulate natural wear. They weren’t falling for it, it was very clearly not natural—a metal file had been used to open the lines just enough to make them bleed. They questioned Cara several times in the following months but couldn’t find anything linking her to the crime. She didn’t seem to know much about cars, there were no tools in her house that matched the damage to her husband’s
