Many of the papers carry pictures of the 17-year-old shot dead in Tottenham, north London on Monday night, named locally as Tanesha Melbourne.
The Sun reports she died in her mother's arms while the Express asks "how many more innocents must die?"
One of her friends told the Mirror she was "an innocent child caught up in a stupid postcode war".
The Guardian says detectives are investigating the possibility that the killing was linked to a feud between gangs in Tottenham and Wood Green.
Another senseless murder is how the Express describes Tanesha's death as it calls for more visible policing and a zero tolerance policy that led to a fall in crime in New York.
Stop and search
The Times notes that successive governments have noisily endorsed the benefits of a zero tolerance approach, but it's been deployed only in tepid fashion.
London Mayor Sadiq Khan is criticised in the Sun and Telegraph over cuts to the use of stop-and-search powers, with accusations that he is not doing enough. The Sun says the exercise was a vital tool against knife possession.
Against this background, the Telegraph reports that ministers are to announce plans to prevent gangs from using social media to incite violence and glamorise crime.
The death of a second teenager - a boy aged 16 - in a separate attack on the same night emerged after some of the papers went to print.
Jeremy Corbyn's decision to meet a fringe Jewish group, which has dismissed claims of anti-Semitism in the party as right-wing smears, continues to attract attention.
The Mail carries the headline, "How low can you go, Mr Corbyn?".
In its editorial, the Times argues that having a meal with the group, Jewdas, suggests he is not serious about tackling anti-Semitism.
The Sun believes it was another hideous misjudgement - and that by attending he stuck two fingers up at the mainstream Jewish community he needs to engage with.
Meanwhile, the Mirror says the controversy is merely an example of "political opportunism" and warns those within and outside the Labour Party that the tactic is unwise.
The Huffington Post website reports that nearly 1,000 people have joined Labour since Jewish groups staged a protest against anti-Semitism in the party last week.
But it points out it's not known how many new members have signed up specifically to support Mr Corbyn on the issue or as part of his wider appeal.
Fruit fly lust
Finally, the Times tells how scientists have come up with an unusual way to try to protect fruit crops in south Australia.
They have dropped two million sterile male fruit flies over northern Adelaide in an attempt to eradicate the species.
The aim is to lure females towards the sterile males, stringing them along for so long that they die off before they can produce any offspring.
To ensure the females choose the sterile males over their local rivals, the insects have been given a special diet which endows them with superior singing skills, smell, endurance and agility.