The man, who police have not yet identified, died after being stabbed, despite the efforts of emergency services who raced to the scene.
Police last night charged Charlie Stevenson, 20, of Portland Street, Boston with the man’s murder.
She is due to appear at Lincoln Magistrates’ Court sometime today.
Police were called to the scene at Portland Street reports were received at around 12.13pm that a man had received a serious stab wound.
Detectives are still keen for anyone with any information that may help, or who has footage from around the scene at the time of the incident, to get in touch.
DCI Richard Myszczyszyn from the East Midlands Special Operations Unit said: “We are still appealing for information and I’d urge anybody who hasn’t yet contacted us to please do so.
“We’d like to reassure everyone that this is an isolated incident and there is no wider risk to the public. We are not looking for anyone else in relation to the incident. We understand that this incident has caused alarm in the local area, but rest assured, we’re doing everything we can to progress the investigation.
“We are grateful to the public for their help so far.”
There are a number of ways that you can get in touch and police are particularly keen to speak to anyone who might have video footage.
A spokesperson for the force said: “We would specifically like to speak to anyone who was in Portland Street on 14th July 2021 between 11:00 and 13:00 who may have recorded footage of the street.
“This could be dashcam, mobile phone footage, CCTV or Ring doorbell. We would also like to speak to anyone who has information that could be relevant to the enquiry.”
Information can now be reported and footage sent via a dedicated portal set up by police for the incident at https://mipp.police.uk/operation/33EM21C77-PO1
Anyone who can help can also call 101 quoting incident 169 of 14th July, emailing [email protected] –using incident 169 of 14 July in the subject line, or remain anonymously via the independent charity, CrimeStoppers on 0800 555 111.