Quick summary of where things are at:

• a shooter brought a pump action shotgun to a building site and started shooting at workers
• two people plus the shooter are dead
• three people seriously injured, three moderately injured
• one responding police officer injured
• does not appear to be politically or ideologically motivated
• shooter was recently sentenced to home detention on domestic violence charges (thanks @SamC@lemmy.nz).

More from police press conference:

• weapon not illegal type, but offender didn't have firearms licence. Unclear how he got weapon, not previously known to have weapon
• was on home detention but had exemption to work at the site
• indications that motivation was related to the work site
• isolated, no wider risk, no reason for others to be worried about safety
• no concerns regarding FIFA event safety