Det Ch Insp Bowell, the senior investigating officer in the case, said Hakim made attempts to set fire to the vehicle used in the attack.
“Both he and Nashir then made extensive car journeys, driving the suspects to various points of exit within the UK, in order to help the suspects flee the country,” she added.
“They were determined and persistent in their efforts and faced challenges due to Covid restrictions which were in place at the time.”
Hakim, of Cardwell Drive, Sheffield, also pleaded guilty to arson and possession of cannabis with intent to supply, as well as possession of an offensive weapon in a public place in relation to a separate incident.
Det Ch Insp Bowell said the investigation had been “complex and lengthy”, adding: “We realise that a wait for justice takes a further toll on a grieving family.
“The investigation continues to progress and we will do everything within our power to bring those they helped before the UK Courts.”
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