SOURCES:An Almost Perfect Murder : David Brown Finally Will Pay for His Fatal Manipulation of Others - Los Angeles TimesDavid Arnold Brown (1952-2014) - Find a Grave MemorialSicko California father David Brown convinces his teen daughter to kill wife, then lets kid rot in jail as he lives high life off insurance money – New York Daily NewsBrown's Wife Tells of Their Earlier Affair - Los Angeles TimesPEOPLE v. BROWN (1992) | FindLawIf You Really Loved Me: Rule, Ann 

SOURCES: Police: Dentist killed wife by lacing shakes with poisonDentist Poisoned Wife to Death to Start 'New Life' With Paramour, Cops Allegehttps://s3.documentcloud.org/documents/23718101/23cr664-craig-james-toliver_redacted.pdfOleandrin: A Systematic Review of its Natural Sources, Structural Properties, Detection Methods, Pharmacokinetics and Toxicology - PMC.Dentist Poisoned Wife to Death to Start 'New Life' With Paramour, Cops AllegeJust a Pinch of Cyanide: The Basics of Homicidal Poisoning Investigations | Office of Justice Programs.Murder By Poison | The New YorkerWho was Colorado dentist James Craig's wife Angela and how many children did they have? | Daily Mail Online

SOURCES: Nicholas Firkus trial: Husband found guilty of wife’s 2010 murderWas there a stranger in the house, or did her husband murder her? Case goes to Minnesota juryMinnesota man convicted of shooting and killing his wife with a shotgun on eve of evictionState v. Nicholas Firkus | Ramsey CountyHusband Arrested for Murder 11 Years After Claiming Wife Was Shot During Struggle With IntruderFour years after St. Paul killing, Heidi Firkus’ family wants answers – Twin Cities

SOURCES: 'People could be charged': Social media rumors about Moscow case leading to doxxing, harassment | The Spokesman-ReviewFrom Russia with Blood: The Kremlin's Ruthless Assassination Program and Vladimir Putin's Secret War on the WestBoris Berezovsky: An Oligarch Dies | The New YorkerNew probe into death of Scottish property tycoon amid fears hitmen threw him out window - Daily RecordProperty tycoon dies in fall under Tube in haunting echo of royal polo friend’s suicide | London Evening StandardMillionaire Scot Young found dead impaled on railings was 'go-to fixer for Russian mob' | The US SunMichelle Young: 'I’m not a victim. I want to come across as powerful’ | London Evening StandardJailed property man hid his assets in offshore network during divorce | Tax avoidance | The GuardianAlexander Litvinenko: Profile of murdered Russian spy - BBC NewsJailed Property Man Hid Assets Offshore During Divorce - ICIJMurder of a Former K.G.B. Agent | The New YorkerScot Young's daughter opens up about his fatal balcony fall saying he was MURDERED by Russian mafia | Daily Mail Online

SOURCES: Jason Carter acquitted of mother’s murder | | oskaloosa.comJudge throws out latest Carter lawsuit | Local News | oskaloosa.comhttps://www.iowacourts.gov/courtcases/11736/briefs/3239/embedBriefBilly Dean Carter Arrested After Father-Son Argument Turns Violent in Marion County | who13.com