killer

assassin

Paid murderer of targets

• hitmanProfessional paid murderer
• slayerOne who kills
• executionerOne who kills condemned

homicide · manslayer · gunman · sniper · strangler · poisoner · serial · mass · contract · hired

shark

Cartilaginous marine predator

• crocodileLarge semiaquatic tropical reptile
• lionManed African feline
• tigerLarge striped Asian feline

wolf · orca · python · cobra · scorpion · spider · grizzly · leopard · panther · cheetah

lethal

Causing or capable of death

• fatalCausing death or ruin
• mortalSubject to death
• deathlyResembling the grave

terminal · devastating · destructive · murderous · venomous · toxic · poisonous · virulent · malignant · pernicious

whodunit

Crime fiction identifying perpetrator

• suspenseAnxious uncertainty about outcomes
• mysterySomething unexplained or unknown
• noirHard-boiled film genre

crime · detective · forensic · procedural · slasher · horror · psycho · Hitchcock · manhunt · investigation

ruthlessness

Lack of compassion or mercy

• aggressionHostile or attacking behavior
• ferocityExtreme violent intensity
• tenacityPersistent grip or resolve

determination · competitiveness · drive · cunning · relentlessness · grit · resolve · ambition · fierceness · boldness

cancer

Uncontrolled cell proliferation disease

• AIDSImmune deficiency syndrome
• HIVAIDS-causing retrovirus
• tuberculosisMycobacterial lung disease

malaria · plague · influenza · pneumonia · cholera · typhoid · meningitis · hepatitis · dengue · Ebola

awesome

Extremely impressive or overwhelming

• amazingCausing great wonder
• incredibleDefying easy belief
• fantasticRemarkably good or unreal

outstanding · excellent · stellar · phenomenal · knockout · showstopper · smash · hit · sensation · blockbuster

• mysteryclue, detective, suspect, clues, sleuth
• mystery fictionwhodunit, whodunnit, sleuth, murder mystery, detective novel
• rule breakersrulebreaker, transgressor, violator, offender, lawbreaker
• challengeschallenge, difficult, hard, challenging, tough
• slang for coolcool, rad, sick, dope, lit
• things revealedsecret, truth, revelation, discovery, confession