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Portland Press-Herald Morning Sentinel
January 5, 2016
Herman DeRico had mental health issues and was using a mix of drugs when he shot and killed the three adults with whom he lived.
OAKLAND — The shooter in a quadruple murder-suicide in Oakland two months ago was a troubled man with mental health issues who was using a variety of prescribed and illegal drugs, authorities said Tuesday.
However, detectives cannot determine Herman DeRico’s motive for the murders, according to Stephen McCausland, spokesman for the Maine Department of Public Safety.
“No note was located from DeRico to explain his actions and probably the only ones who could were killed by him that night,” McCausland said in a news release.
DeRico, 42, shot to death his girlfriend, Amy Derosby, 28, her sister Amanda Bragg, 30, and Bragg’s partner, Michael Muzerolle, 29, in the Belgrade Road apartment building they shared on Nov. 4. DeRico then shot himself. The 3-year-old daughter of Bragg and Muzerolle was unharmed.
In an interview, McCausland said that aside from some final paperwork, investigators have closed the case.
According to McCausland, toxicology tests showed DeRico had amphetamines, methamphetamine, marijuana and alcohol in his system, and there was evidence of recent cocaine use.
DeRico had been treated at hospitals four times in 2015 for mental health issues and had been prescribed drugs for anxiety, depression, paranoia and sleep issues, including citalopram, lorazepam, risperidone and trazodone, McCausland said.
The only published mention of DeRico before the shooting is in the Morning Sentinel Kennebec County court dispositions published Sept. 13 for a $350 marijuana possession charge.
All of the shooting victims grew up in the Waterville area – Muzerolle was the nephew of Oakland Police Chief Michael Tracy.
Scant information has been available on DeRico, whom police have said is not from Maine and whose mother is in California and grandmother in Alabama.
The four all lived at 41 Belgrade Road. Derosby lived on the second floor with DeRico, while Muzerolle and Bragg lived on the first floor.
Jackie Bragg, mother of the sisters, said in an interview recently, “We were all fooled by this madman.”