The hulking computer technician accused of gunning down seven of 
            his co-workers at a Wakefield high-tech firm this week suffered from 
            a host of mental illnesses - including schizophrenia - for which he 
            was taking a trio of antidepressants, a source told the Herald 
            yesterday.
            
            
              
              
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              Accused killer Michael M. 
              McDermott at his arraignment Wednesday. (Staff photo by Matthew 
              West)
``He's got some serious 
            psychological issues and a long (psychiatric) history,'' the source 
            said of 42-year-old Michael ``Mucko'' McDermott.
            McDermott, a divorced Navy veteran from Marshfield who lived most 
            recently in Haverhill, suffered from severe depression, paranoia and 
            schizophrenia, and had been in psychiatric treatment for some time, 
            according to the source who spoke on condition of anonymity.
            
To cope with his mental disorders, McDermott was prescribed 
            several Selective Serotonin Reuptake Inhibitors, or SSRIs, designed 
            to increase brain serotonin. Low levels of brain serotonin can lead 
            to depression and anxiety disorders.
            
A source familiar with the investigation said McDermott's 
            supervisors at Edgewater Technology Inc. did not appear to know he 
            was using the medication.
            
McDermott is being held without bail on seven counts of 
            first-degree murder in Tuesday's massacre at Edgewater. Prosecutors 
            have said McDermott wielded a shotgun and semiautomatic rifle with 
            premeditated precision and extreme atrocity, hunting down workers in 
            the company's accounting and human resources offices but letting 
            others flee unharmed.
            
He was arrested by police who found him sitting in the lobby near 
            the bodies of two of his victims. At least two Edgewater employees 
            witnessed the rampage, including one woman who hid behind a chair 
            and her coat beneath a desk in the accounting office, where two of 
            her co-workers were killed.
            
Middlesex County District Attorney Martha Coakley has said 
            McDermott may have been seeking vengeance over the impending docking 
            of his paychecks by Edgewater to satisfy an IRS demand for back 
            taxes. Sources say the IRS orders would have left McDermott with 
            just $275 every two weeks.
            
But investigators also are looking for clues about what drove the 
            man to kill by delving into the contents of computers seized from 
            McDermott's office and home, where police also found bomb-making 
            literature and materials. One source said McDermott had attempted to 
            wipe out the hard drive of his office computer the day of the 
            shootings.
            
Yesterday, neither Coakley nor McDermott's defense attorney, 
            Kevin Reddington, would discuss the case or McDermott's mental state 
            and psychological history. However, at Wednesday's arraignment, 
            Reddington raised the specter of an insanity defense by saying his 
            client had been seeing psychiatrists and asking the judge to OK his 
            continued medication.
            
Insanity defenses rarely succeed. The so-called Prozac defense 
            has been unsuccessfully attempted in dozens of murder cases 
            nationwide, including in the case of Kip Kinkel, the teenager who 
            killed his family and two schoolmates in Springfield, Ore.
            
According to the source, who is familiar with the still mounting 
            case, McDermott had been taking Paxil, Prozac and Desyrel - all of 
            which are SSRIs designed to treat depression, social phobias or 
            anxiety.
            
The source also said orders have been sent by doctors to the 
            Middlesex County Sheriff's office so McDermott can receive his 
            medications in the Cambridge jail. He will be examined by 
            psychiatrists some time in the next week, the source said.
            
The revelations about McDermott's psychiatric history emerged as 
            his co-workers returned to St. Joseph's Church - where so many of 
            them had sought refuge and solace in the hours after the shootings - 
            for a memorial service in honor of their seven slain colleagues.
            
``We're all hurting and grieving, but I can't tell you how much 
            we're pulling together as a team,'' Edgewater Technology Chief 
            Executive Officer Shirley Singleton said after meeting with her 
            employees for the first time since the shootings.
            
The company has started a memorial fund for the families of the 
            slain workers with a $70,000 donation. Singleton also said grief 
            counseling, which began yesterday at the firm, would continue as 
            long as employees need help.
            
She declined to discuss the shootings that claimed the lives of 
            Jennifer Bragg Capobianco, 29; Janice Hagerty, 46; Louis Javelle, 
            58; Rose Manfredi, 48; Paul Marceau, 36; Cheryl Troy, 50, and Craig 
            Wood, 29.
            
State and federal authorities are seeking the origin of 
            McDermott's weapons, including the AK-47-style rifle and 12-gauge 
            shotgun that he is alleged to have used to kill the four women and 
            three men, a .32-caliber pistol found in his pants pocket and a 
            large-caliber hunting rifle found in a locker by his desk.
            
Haverhill police began looking for McDermott late Christmas Eve 
            after someone reported hearing gunfire in the woods near Crystal 
            Lake, where a man fitting his description was spotted by a car with 
            the license plate ``MUCKO.'' Officers traced the car back to 
            McDermott's apartment but could not locate him despite several more 
            visits Christmas Day.
            
One day later, investigators believe McDermott lugged the weapons 
            unnoticed into the Harvard Mills complex, one law enforcement source 
            said. Two soft-sided gun cases were found under his desk.
            
``He walked them right in and placed them under his desk,'' the 
            source said. ``They had a skeleton crew working that day and no one 
            apparently saw him or recognized what the cases were for.''
            
The source said McDermott loaded the shotgun with buckshot at his 
            work station before embarking on his killing spree. The source, a 
            longtime investigator, said the carnage he witnessed in the 
            shooting's aftermath left him shaken.
            
``I was sick to my stomach over it,'' he said. ``It was unlike 
            any other murder scene because it was in a work setting. It was 
            almost surreal. One of the (dead) women had her head resting on her 
            arm like she knew she was going to get it.''
            
Meanwhile, gun control advocates held a rally outside the State 
            House to urge lawmakers to ban the sale of assault weapons like 
            McDermott's. Although Massachusetts already has the country's 
            toughest gun law, it does not ban the sale of assault weapons 
            manufactured before September 1994.
            
``They have no legitimate use in a civilized society other than 
            for law enforcement,'' said Stop Handgun Violence co-founder John E. 
            Rosenthal.
            
Kevin Sowyrda, spokesman for the Gun Owners Action League, 
            declined to comment specifically on an assault weapon ban but said, 
            ``The last thing we need in this period of mourning are political 
            rallies.''
            
Donations may be made to the Edgewater Wakefield Memorial 
            Foundation, Box 2133, Wakefield, Mass. 01880-6133. Donations may 
            also be made at Fleet bank branches.
            
Karen E. Crummy contributed to this report.