An allegedly disgruntled former patient of an El Cajon dental clinic accused of bursting into the office last week and shooting three employees, including a young dentist who died, pleaded not guilty Tuesday to murder and attempted murder charges.
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An allegedly disgruntled former patient of an El Cajon dental clinic accused of bursting into the office last week and shooting three employees, including a young dentist who died, pleaded not guilty Tuesday to murder and attempted murder charges.
