Joanna Dennehy Wiki (Serial Killer) Age, Bio, Family, Husband & Facts

Joanna Dennehy British Serial Killer

Joanna Dennehy (born in 1982) is a British Criminal Personality and Notorious Serial Killer from St Albans, Hertfordshire (UK). Though, she is living in prison for killing three men. First, one is Lukasz Slaboszewski (31) Polish National.

In fact, Joanna promises him to have sex. Later on, she stabs a knife in his heart and dumped the body. In the same week, she targets the second man named John Chapman (Falklands Veteran).

During his death, his age is around 56 years old. Later on, she murders her lover and property owner Kevin Lee (48). Ms. Dennehy has stab wounds on her neck and chest. Meanwhile, she wants to kill around 9 men. Additionally, Joanna plans to become like Clyde and Bonnie.


Complete Story of the Serial Killer

Soon, the police file the case of the triple murder on her. She arrests within two days. Before that, Dennehy tries to attack the two-dog walker named John and Robin. On the judgment day, Justice Spencer calls her cruel, manipulative and selfish woman.

Joanna Dennehy Controversy, Illness & Life

She receives life imprisonment punishment. Joanna laughs at that time. Now, she is in HMP Bronzefield prison in Surrey.  Still, Denney’s husband John said that she is the curse for her children. She gave birth to two children that’s all.

Now, John is trying to protect his children from their mother. He even gives an interview to “The Morning”. Recently, ITV releases a documentary “Joanna Dennehy: Serial Killer”.

Susanna Reid (Journalist) is examining her case. Furthermore, she is looking at her prison CCTV footages too. Ms. Susan wants to find about her background too. In fact, she is most-wanted British killers of 2013. Reid discusses her plans through an interview with “The Scotsman”.


Profile, Parents & Early Life

This manipulative murderer was born in 1982 in St Albans, Hertfordshire (United Kingdom). Now, Joanna Dennehy’s age is around 37 years old. She is the eldest daughter of Kelvin (father) and Kathleen (mother).

Joanna Dennehy Biography

Actually, Joanna’s father is a security guard and mother is working as a shop manager. Maria is her younger sister. In fact, she lives in Afghanistan and works for the British army. In her childhood, Joanna is a loving person. She usually visits the playground. On the other hand, she is kind of an emotional person too.

After coming in her mid-teens, she changes herself drastically. However, Ms. Dennehy starts consuming drugs and alcohol. Apart from that, her family wants her to take study. She lacks interest in the study and going to school.


Personal Affairs, Spouse & Children

Joanna Dennehy Husband & Children

Joanna is in romantic relations with several men. Then, she tied the knot with John Treanor. Ms. Dennehy’s spouse is 5 years older from her. She meets him after running from home.

Meanwhile, the pair has two sweet children. However, Treanor frustrated by Joanna’s habits. She drinks alcohol regularly.

Then, she starts kicking him and her kids. She stabs the knife on the floor too. Later on, John leaves the house with his children. His top priority is to protect his children.


Trivia & Quick Info

Joanna Dennehy Height, Weight & Ethnicity

Real Full Birth NameJoanna Dennehy.
Nick nameJoanna.
ProfessionSerial Killer.
In The News For1. Facing life imprisonment after killing three men.
2. Documentary made on her i.e. "Joanna Dennehy: Serial Killer".
Age (As of 2019)37 years old.
Date of Birth (DOB), Birthday1982.
Birthplace/HometownSt Albans, Hertfordshire (UK).
Sexuality (Gay or Lesbian)Straight.
Sun Sign (Zodiac Sign)Will Update.
Current ResidenceHMP Bronzefield, Surrey.
Physical Statistics
Height (Tall)Feet & Inches: 5' 5".
Centimeters: 165 cm.
Meters: 1.65 m.
WeightKilograms: 55 Kg.
Pounds: 123
Body Measurements (Breast-waist-hips)33-25-34.
Shoe Size (UK)5.
Tattoo details?Inks star tattoo on her face.
Eye ColorDark Brown.
Hair ColorBlonde.
ParentsFather: Kelvin (Security Guard).
Mother: Kathleen (Shop Manager).
SiblingsBrother: None.
Sister: Maria (Army Officer).
Famous RelativesGrandparents:
Personal Life Relationship
Marital StatusMarried.
Dating History?NA.
Husband/Spouse NameJohn Treanor.
SonName Not Known.
DaughterWill Update.
Highest QualificationHigh School Graduate.
SchoolHigh School.
Alma Mater.Not Known.
Hobbies & Favorite Things
Favorite CelebritiesActor: Brad Pitt.
Actress: Angelina Jolie.
Dream Holiday DestinationLondon & Italy.
Favorite ColorBlack, Blue & Green.
Love to doPlay in the playground & Travel.
Favorite FoodItalian Dishes.
Net worth (approx.)Under Revision.
Salary, Income & EarningsUnder Review.
Contact Details
Mobile or Phone Number--
Office AddressNA.
Home DetailsWill Update.
Official WebsiteNA.
Email AddressNot found.


Some Lesser Known Facts about Joanna Dennehy

Joanna Dennehy Hobbies, Documentary Movie

  • Joanna is a simple and sensitive personality.
  • By the age of 13, she runs from her house for the first time.
  • Then, she encounters a man during a football match.
  • Soon, the 37-year-old comes back and starts stealing things from home.
  • Again, she has left her house at the age of 15.
  • Wikipedia: Joanna Dennehy contacts her sister after 7 years of her engagement.
  • Though, Dennedy shares false news of being bi-polar.
  • She kept in the prison after charged for theft in 2012.
  • In a psychological test, she found suffering from an anti-social personality disorder.
  • She becomes a violent and impulsive personality within time.

Have a Look: The Biography of Jennie Pegouskie | Lifestyle, Story, Detail & Career

  • Soon, John’s wife starts taking medicines to control her mood.
  • Moreover, she has met Kevin Lee in 2013 as he gives cheap rented rooms.
  • Later on, they become sexual partners too.
  • A BBC report 2016, displays her uncovered plan of escaping Surrey prison.
  • Her mom-dad is sad about her bad deeds and blame themselves.
  • According to “The Sun” report 2018, she tries to commit suicide multiple times.
  • She cut her wrist two times but failed.




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