Both ATR and Bombardier planes have been in serious crashes with loss of life

The internet site www.airsafe.com is a credible source for airline safety

It details crashes by airlines and also by type of aircraft. You can check specifics by clicking on the link above, which will take you to the website. 

The statistics show that both the ATR-72 and the Bombardier planes have been involved in serious crashes in the past. Here are some examples taken from the website:

• November 4, 2010—AeroCaribbean; CU-T1549; ATR 72-212; Flight 883; near Guasimal, Sancti Spiritus Province, Cuba: The aircraft was on a domestic flight from Santiago to Havana, Cuba. The crew reported an emergency situation shortly before the aircraft crashed in mountainous terrain. All seven crew members and 61 passengers were killed 
• August 2005—Tuninter ATR 72; near Palermo, Italy: The aircraft was on an unscheduled international flight from Bari, Italy, to Djerba, Tunisia, when the aircraft reportedly developed engine trouble. The crew ditched the aircraft off the coast of Palermo. Two of the four crew members and 14 of the 35 passengers were killed
• October 31,1994—American Eagle (Simmons Airlines) ATR 72...from Indianapolis and Chicago. During descent, the crew activated the airframe de-icing system. The crew was in a holding pattern at about 10,000 feet (3050m) and while the aircraft was descending to 8,000 feet, the aircraft went out of control due to the effects of icing, and crashed. The four crew members and 64 passengers were all killed. The icing occurred in areas of the wings that were beyond the area protected by the de-icing system

With respect to Bombardier it reported:

• November 12, 2009—RwandAir CRJ-100ER; Flight 205; Kigali, Rwanda: A RwandAir CRJ-100ER was on a scheduled flight from Kigali, Rwanda to Kampala, Uganda, and ran into a terminal at the Kigali airport. The nose gear collapsed and the forward portion of the aircraft penetrated the building up to about the position of the forward passenger doors. One of the three crew members and one of the ten passengers were killed
• August 27, 2006—Delta Connection (Comair) CRJ-100; Lexington, Kentucky, USA: The aircraft was on a scheduled domestic flight from Lexington to Atlanta. The aircraft crashed shortly after takeoff, about a half mile from the end of the departure runway. Two of the three crew members and all 47 passengers were killed 
  
• November 21, 2004—China Yunnan Airlines (China Eastern) CRJ-200; Baotou, China: The aircraft crashed shortly after taking off on a scheduled domestic flight from Baotou to Shanghai. The six crew members and 47 passengers were all killed in the crash
• December 16 1997—Air Canada CRJ-100ER; Fredericton, Canada: The aircraft was on a scheduled domestic flight from Toronto to Fredericton. The aircraft was destroyed, but none of the three crew or 39 passengers were killed