When Colton and Larry lie in the hospital, they are "supposed" to be attached to EKG/ECG and IV machines for them show up as "0."
This is an error, because when someone is in the hospital hooked up to these machines, they would reflect vital sign changes throughout the time someone was hooked up to it.
Patrolmen come upon a stricken, motionless woman, possibly dead. They pick up the baseball bat lying next to her, thereby contaminating evidence.