Attorneys for the five children of Daniel Prude, a Black man who died after being restrained by police during a mental health episode, announced a federal lawsuit Monday against the city of Rochester and at least six police officers, alleging wrongful death and civil rights violations.

Seven police officers involved in the suffocation death of Daniel Prude in Rochester, New York, were suspended Thursday by the city’s mayor, who said she was misled for months about the circumstances of the fatal encounter.

Daniel Prude, 41, known to his big Chicago-based family by the nickname “Rell,” died March 30 after he was taken off life support, seven days after the encounter with police in Rochester.