Colorado school shooting: Student who wounded two students before killing himself may have had grudge against teacher

view gallery VIEW GALLERY

One student remains in a serious condition, while another suffered minor injuries

A high school in suburban Denver became the scene of another deadly shooting on Friday night when a teenager opened fire, wounding two students before killing himself.

The gunman was indentified by police last night as Karl Halverson Pierson.

The emergency lockdown at Arapahoe High School in Centennial on the south side of the city came on the eve of the first anniversary of last December’s primary school shooting at Sandy Hook School in Connecticut which left 26 people dead including 20 children.

Police officials said the alert started when a student, whose name had not been released, entered the school intent on confronting a teacher.  The teacher was informed and immediately left the grounds.

"He knew he was the target and he left that school in an effort to try to encourage the shooter to also leave the school," the sheriff said. "That was a very wise tactical decision."

The shooter then shot two students, including a girl who was in serious condition. The other student suffered minor injuries and was expected to be released from the hospital on Friday night, he said. 

A suspected Molotov cocktail was also found inside the school,  Arapahoe County Sheriff Grayson Robinson said. The bomb squad was investigating the device.

Deputies and police officers who responded to the school immediately entered to engage the gunman as students were kept locked in their classrooms. 

Several other school districts in the Denver area went into lockdown. 

The practice of sending law enforcement directly into an active shooting was developed in response to another Colorado school shooting that shook the nation: In 1999, two teenage shooters killed 12 classmates and a teacher at Columbine High School before killing themselves. 

Arapahoe High School is just eight miles from Columbine.

Additional reporting by PA

PROMOTED VIDEO
Have you tried new the Independent Digital Edition apps?
News
ebooksNow available in paperback
Arts and Entertainment
booksPhotographer Richard Young has been snapping celebrities at play for 40 years - but he says it wasn’t all fun and games...
News
i100
Sport
Aguero - who single-handedly has kept City's Champions League dreams alive - celebrates his dramatic late winner
footballManchester City 3 Bayern Munich 2: Argentine's late hat-rick sees home side snatch vital victory
News
Muhammad Ali pictured in better health in 2006
peopleBut he has enjoyed publicity from his alleged near-death experience
Arts and Entertainment
Tony breaks into Ian Garrett's yacht and makes a shocking discovery
TVReview: Revelations continue to make this drama a tough watch
News
news
News
peopleSinger tells The Independent what life is like in rehab in an exclusive video interview
News
The assumption that women are not as competent in leadership positions as men are leads to increased stress in the workplace
science... and it's down to gender stereotypes
Arts and Entertainment
Inner sanctum: Tove Jansson and friends in her studio in 1992
booksWhat was the inspiration for Finland's most famous family?
News
i100
Arts and Entertainment
Singer songwriter Bob Dylan performs on stage
films
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs General

Austen Lloyd: Commercial Property Lawyer - Cheshire

Excellent Salary: Austen Lloyd: CHESHIRE MARKET TOWN - An exciting and rare o...

Austen Lloyd: Residential Property Solicitor - Hampshire

Excellent Salary : Austen Lloyd: NORTH HAMPSHIRE - SENIOR POSITION - An exciti...

Recruitment Genius: Gas Installation Engineer

£29000 per annum: Recruitment Genius: A Gas Installation Engineer is required ...

Recruitment Genius: Domestic Gas Technical Surveyor

£28000 per annum: Recruitment Genius: A Domestic Gas Technical Surveyor is req...

Day In a Page

Homeless Veterans Christmas Appeal: Drifting and forgotten - turning lives around for ex-soldiers

Homeless Veterans Christmas Appeal: Turning lives around for ex-soldiers

Our partner charities help veterans on the brink – and get them back on their feet
Putin’s far-right ambition: Think-tank reveals how Russian President is wooing – and funding – populist parties across Europe to gain influence in the EU

Putin’s far-right ambition

Think-tank reveals how Russian President is wooing – and funding – populist parties across Europe to gain influence in the EU
Tove Jansson's Moominland: What was the inspiration for Finland's most famous family?

Escape to Moominland

What was the inspiration for Finland's most famous family?
Nightclubbing with Richard Young: The story behind his latest book of celebrity photographs

24-Hour party person

Photographer Richard Young has been snapping celebrities at play for 40 years. As his latest book is released, he reveals that it wasn’t all fun and games
Michelle Obama's school dinners: America’s children have a message for the First Lady

A taste for rebellion

US children have started an online protest against Michelle Obama’s drive for healthy school meals by posting photos of their lunches
Colouring books for adults: How the French are going crazy for Crayolas

Colouring books for adults

How the French are going crazy for Crayolas
Jack Thorne's play 'Hope': What would you do as a local politician faced with an impossible choice of cuts?

What would you do as a local politician faced with an impossible choice of cuts?

Playwright Jack Thorne's latest work 'Hope' poses the question to audiences
Ed Harcourt on Romeo Beckham and life as a court composer at Burberry

Call me Ed Mozart

Paloma Faith, Lana del Ray... Romeo Beckham. Ed Harcourt has proved that he can write for them all. But it took a personal crisis to turn him from indie star to writer-for-hire
10 best stocking fillers for foodies

Festive treats: 10 best stocking fillers for foodies

From boozy milk to wasabi, give the food-lover in your life some extra-special, unusual treats to wake up to on Christmas morning
Phil Hughes head injury: He had one weakness – it has come back to haunt him

Phil Hughes had one weakness – it has come back to haunt him

Prolific opener had world at his feet until Harmison and Flintoff bounced him
'I have an age of attraction that starts as low as four': How do you deal with a paedophile who has never committed a crime?

'I am a paedophile'

Is our approach to sex offenders helping to create more victims?
How bad do you have to be to lose a Home Office contract?

How bad do you have to be to lose a Home Office contract?

Serco given Yarl’s Wood immigration contract despite ‘vast failings’
Green Party on the march in Bristol: From a lost deposit to victory

From a lost deposit to victory

Green Party on the march in Bristol
Putting the grot right into Santa's grotto

Winter blunderlands

Putting the grot into grotto
'It just came to us, why not do it naked?' London's first nude free runner captured in breathtaking images across capital

'It just came to us, why not do it naked?'

London's first nude free runner captured in breathtaking images across capital