[3] They formed a relationship during the break between Grice and Ashley Cooke, her boyfriend since high school, then Lane had become obsessed with her.
[2] Lane put a tracker device on her car which notified him via his mobile phone every time her vehicle moved.
[1] On 8 February 2016, Grice complained to police about being stalked by Lane after receiving unwanted flowers and damage to her car.
[4] He was arrested on suspicion of assault but later released and Grice was issued with a fixed penalty notice by the police for wasting their time by not disclosing she had been in a relationship with him.
[4][2] The following day, 10 July 2016, she received around seven phone calls from a blocked number, including one with heavy breathing.
[1] Her body was found by Ian Cooke, her boyfriend's father, in her home at Chrisdory Road, Portslade, East Sussex.
[2] He claimed that he panicked, then left the scene without dialing 999, checking Grice’s vital signs or telling his family what he had found.
[1] During sentencing he said, "There was seemingly no appreciation on the part of those investigating that a young woman in a sexual relationship with a man could at one and the same time be vulnerable and at risk of serious harm.
[1] In late April 2017, Sussex Police accepted six recommendations from the IPCC to improve the way the force dealt with stalking.
[6] IPCC associate commissioner Tom Milsom said that Sussex Police had taken a positive response to the recommendations and he said that "Stalking and harassment are serious offences and in certain situations, such as those involving Grice, can have tragic consequences.
"[6][10] Detective Superintendent Jason Tingley of Sussex Police said that additional training was already being provided and "We have improved our understanding of what stalking and harassment is and what our response should be.
"[6][10][7] In April 2019 a report by Her Majesty's Inspectorate of Constabulary and Fire & Rescue Services concluded that stalking and harassment offences were not being properly investigated by Sussex Police.
[11] The report said that a training programme introduced after Grice's murder to help staff understand and identify stalking "was never fully completed".
[11] Police forces nationally were not using powers under stalking laws to search suspects' homes, which made investigations less thorough.
[19] A March 2021 documentary about the case, Murder in Slow Motion: The Shana Grice Story, was broadcast on Sky Crime.