In this episode:
Authorities are investigating the two explosions that killed two people and injured at least 50 at the Boston Marathon on Monday; Homicide investigators were still trying to identify a decomposed body found last Wednesday in San Francisquito Canyon when more human remains were discovered in Palmdale.

Also:
When Hart district board members meet Wednesday, they’ll be discussing a number of items that could have a lasting impact on Santa Clarita Valley schools; local weather.

Sports:
Trinity Classical Academy 3-sport athlete Dakota Prochnow has signed a letter of intent to play football at Benedictine College; College of the Canyons freshman and Hart High graduate Tim White won the triple jump at the Mount San Antonio Relays on Saturday.

Finally:
Meet the brave runners who weren’t afraid of a little mud at the Merrell Down and Dirty Mud Run in Castaic.

Television viewers can catch the SCV NewsBreak on SCVTV at the top of every hour from 7 p.m. to 11 p.m., repeating the following morning at 6 a.m. and 8 a.m. SCVTV runs on Time Warner Cable Channel 20 and AT&T U-Verse Channel 99, and streaming on SCVTV.com.