Missouri prosecutors said Tuesday that two men have been charged with murder in last week’s shooting that killed one person and injured 22 others after the Kansas City Super Bowl parade.

Both adults are charged with second-degree murder and other charges. They have been hospitalized since the shooting, Jackson County prosecutor Jean Peters Baker said during a news conference.

The new charges come after two juveniles were detained last week on gun-related and resisting arrest charges. Authorities said more charges are possible.

Police have said a dispute among several people led to the shooting, which happened even as 800 police officers patrolled the