TORONTO (AP) — The Canadian government announced Tuesday it will conduct a full public inquiry into a mass shooting in April that killed 22 people in Nova Scotia.

Public Safety Minister Bill Blair said the government is responding to calls from families, survivors, advocates and Nova Scotia members of Parliament for more transparency.

Thirteen of the victims were shot to death and nine died in fires set by the suspect, who was fatally shot by police a day later. The gunman wore a police uniform and drove a car that looked like a police cruiser.

Police have said the weekend rampage on April 18 and 19 started with an assault by Gabriel Wortman, 51, on his girlfriend and ended with 22 people dead in communities across central and northern Nova Scotia. The girlfriend, who survived and is cooperating with police, hid overnight in the woods as the suspect shot his neighbors and set homes on fire.

“The tragedy that took place in Nova Scotia on April 18 and 19, 2020, devastated families, friends and communities. Canadians deserve answers to how such a tragedy could occur,” Blair said in a statement.

“This situation requires that our governments work diligently with all those affected by this tragedy to bring forward the critical answers, and to ensure an event such as this will never happen again.”